Shoulder milling insert with four cutting edges per insert, precision ground
Shoulder milling insert with four cutting edges per insert, precision ground
Shoulder milling insert with four cutting edges per insert, precision ground
Shoulder milling insert with four cutting edges per insert, precision ground
Shoulder milling insert with four cutting edges per insert, precision ground
Shoulder milling insert with four cutting edges per insert, precision ground
Shoulder milling insert with four cutting edges per insert, precision ground
Shoulder milling insert with four cutting edges per insert, precision ground

Mill 4™-12KT • Carbide Insert • LNGQ12-GE • Medium Machining

Shoulder milling insert with four cutting edges per insert, precision ground

Features and benefits

  • Precision ground insert for best surface finish.

  • Advanced insert/pocket interface ensures stability and consistent performance in difficult applications.

  • Up to 15% lower power consumption.

  • Easy insert indexing through screw clamping.

Workpiece Materials

P Steel
M Stainless Steel
K Cast Iron
S High-Temp Alloys
H Hardened Materials
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  • P Steel (26)
    • P0
      Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS
      (20)
    • P1
      Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS
      (20)
    • P2
      Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS
      (20)
    • P3
      Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS
      (20)
    • P4
      Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS
      (20)
    • P5
      Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS
      (26)
    • P6
      High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS
      (26)
  • M Stainless Steel (26)
    • M1
      Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS
      (26)
    • M2
      High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS
      (26)
    • M3
      Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS
      (26)
  • K Cast Iron (26)
    • K1
      Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS
      (26)
    • K2
      Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS
      (26)
    • K3
      High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS
      (26)
  • S High-Temp Alloys (26)
    • S1
      Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS
      (20)
    • S2
      Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS
      (20)
    • S3
      Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS
      (20)
    • S4
      Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS
      (26)
  • H Hardened Materials (5)
    • H1
      Hardened Materials 44-48 HRC
      (5)
Corner configuration
Corner Radius
Corner Radius
  • 0.016 in (5)
  • 0.031 in (8)
  • 0.047 in (7)
  • 0.061 in (8)
  • 0.078 in (7)
  • 0.094 in (3)
  • 0.125 in (3)
Corner Radius Min to Corner Radius Max
Corner Radius
Corner Radius
  • 0.4 mm (5)
  • 0.8 mm (8)
  • 1.201 mm (7)
  • 1.55 mm (8)
  • 1.975 mm (7)
  • 2.375 mm (3)
  • 3.176 mm (3)
Corner Radius Min to Corner Radius Max
Application
Grade Of Cutting Tool
Grade Of Cutting Tool
  • KC522M (5)
  • KC725M (2)
  • KCK15 (5)
  • KCK20 (5)
  • KCK20B (5)
  • KCPK30 (6)
  • KCPM40 (7)
  • KCSM40 (6)
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SAP Material Number ISO Catalog Number ANSI Catalog Number Grade [LI] Insert Length [LI] Insert Length [S] Insert Thickness [S] Insert Thickness [W] Insert Width [W] Insert Width [Rε] Corner Radius [Rε] Corner Radius Average Chip Thickness [HM] Average Chip Thickness [HM] Cutting Edges per Insert
6525560 LNGQ120604ERGEKT4 LNGQ120604ERGEKT4 KCK20 13.0000 .5118 6.3500 .2500 13.5040 .5316 0.3970 .0156 0.0500 .0020 4
    List price:
    $34.93 /each
    Your price:
    Qty
    6525559 LNGQ120604ERGEKT4 LNGQ120604ERGEKT4 KCK15 13.0000 .5118 6.3500 .2500 13.5040 .5316 0.3970 .0156 0.0500 .0020 4
      List price:
      $35.62 /each
      Your price:
      Qty
      6525691 LNGQ120604ERGEKT4 LNGQ120604ERGEKT4 KCPM40 13.0000 .5118 6.3500 .2500 13.5040 .5316 0.3970 .0156 0.0500 .0020 4
        List price:
        $34.93 /each
        Your price:
        Qty
        6525558 LNGQ120604ERGEKT4 LNGQ120604ERGEKT4 KC522M 13.0000 .5118 6.3500 .2500 13.5040 .5316 0.3970 .0156 0.0500 .0020 4
          List price:
          $34.93 /each
          Your price:
          Qty
          6969931 LNGQ120604ERGEKT4 LNGQ120604ERGEKT4 KCK20B 13.0000 .5118 6.3500 .2500 13.5040 .5316 0.3970 .0156     4
            List price:
            $34.93 /each
            Your price:
            Qty
            6525752 LNGQ120608ERGEKT4 LNGQ120608ERGEKT4 KCK20 13.0000 .5118 6.3500 .2500 13.3850 .5270 0.8000 .0312 0.0500 .0020 4
              List price:
              $34.93 /each
              Your price:
              Qty
              6525753 LNGQ120608ERGEKT4 LNGQ120608ERGEKT4 KCPK30 13.0000 .5118 6.3500 .2500 13.3850 .5270 0.8000 .0312 0.0500 .0020 4
                List price:
                $35.62 /each
                Your price:
                Qty
                6525751 LNGQ120608ERGEKT4 LNGQ120608ERGEKT4 KCK15 13.0000 .5118 6.3500 .2500 13.3850 .5270 0.8000 .0312 0.0500 .0020 4
                  List price:
                  $35.62 /each
                  Your price:
                  Qty
                  6525750 LNGQ120608ERGEKT4 LNGQ120608ERGEKT4 KC522M 13.0000 .5118 6.3500 .2500 13.3850 .5270 0.8000 .0312 0.0500 .0020 4
                    List price:
                    $34.93 /each
                    Your price:
                    Qty
                    6525754 LNGQ120608ERGEKT4 LNGQ120608ERGEKT4 KCPM40 13.0000 .5118 6.3500 .2500 13.3850 .5270 0.8000 .0312 0.0500 .0020 4
                      List price:
                      $34.93 /each
                      Your price:
                      Qty
                      6525755 LNGQ120608ERGEKT4 LNGQ120608ERGEKT4 KCSM40 13.0000 .5118 6.3500 .2500 13.3850 .5270 0.8000 .0312 0.0500 .0020 4
                        List price:
                        $40.52 /each
                        Your price:
                        Qty
                        6525756 LNGQ120608ERGEKT4 LNGQ120608ERGEKT4 KC725M 13.0000 .5118 6.3500 .2500 13.3850 .5270 0.8000 .0312 0.0500 .0020 4
                          List price:
                          $34.93 /each
                          Your price:
                          Qty
                          6969918 LNGQ120608ERGEKT4 LNGQ120608ERGEKT4 KCK20B 13.0000 .5118 6.3500 .2500 13.3850 .5270 0.8000 .0312     4
                            List price:
                            $34.93 /each
                            Your price:
                            Qty
                            6525746 LNGQ120612ERGEKT4 LNGQ120612ERGEKT4 KCK20 13.0000 .5118 6.3500 .2500 13.2640 .5222 1.1910 .0469 0.0500 .0020 4
                              List price:
                              $34.93 /each
                              Your price:
                              Qty
                              6525749 LNGQ120612ERGEKT4 LNGQ120612ERGEKT4 KCSM40 13.0000 .5118 6.3500 .2500 13.2640 .5222 1.1910 .0469 0.0500 .0020 4
                                List price:
                                $40.52 /each
                                Your price:
                                Qty
                                6525748 LNGQ120612ERGEKT4 LNGQ120612ERGEKT4 KCPM40 13.0000 .5118 6.3500 .2500 13.2640 .5222 1.1910 .0469 0.0500 .0020 4
                                  List price:
                                  $34.93 /each
                                  Your price:
                                  Qty
                                  6525745 LNGQ120612ERGEKT4 LNGQ120612ERGEKT4 KCK15 13.0000 .5118 6.3500 .2500 13.2640 .5222 1.1910 .0469 0.0500 .0020 4
                                    List price:
                                    $35.62 /each
                                    Your price:
                                    Qty
                                    6525747 LNGQ120612ERGEKT4 LNGQ120612ERGEKT4 KCPK30 13.0000 .5118 6.3500 .2500 13.2640 .5222 1.1910 .0469 0.0500 .0020 4
                                      List price:
                                      $35.62 /each
                                      Your price:
                                      Qty
                                      6525744 LNGQ120612ERGEKT4 LNGQ120612ERGEKT4 KC522M 13.0000 .5118 6.3500 .2500 13.2640 .5222 1.1910 .0469 0.0500 .0020 4
                                        List price:
                                        $34.93 /each
                                        Your price:
                                        Qty
                                        6969919 LNGQ120612ERGEKT4 LNGQ120612ERGEKT4 KCK20B 13.0000 .5118 6.3500 .2500 13.2640 .5222 1.1910 .0469     4
                                          List price:
                                          $34.93 /each
                                          Your price:
                                          Qty
                                          6525716 LNGQ120616ERGEKT4 LNGQ120616ERGEKT4 KCK20 13.0000 .5118 6.3500 .2500 13.1410 .5174 1.5580 .0625 0.0500 .0020 4
                                            List price:
                                            $34.93 /each
                                            Your price:
                                            Qty
                                            6525717 LNGQ120616ERGEKT4 LNGQ120616ERGEKT4 KCPK30 13.0000 .5118 6.3500 .2500 13.1410 .5174 1.5580 .0625 0.0500 .0020 4
                                              List price:
                                              $35.62 /each
                                              Your price:
                                              Qty
                                              6525715 LNGQ120616ERGEKT4 LNGQ120616ERGEKT4 KCK15 13.0000 .5118 6.3500 .2500 13.1410 .5174 1.5580 .0625 0.0500 .0020 4
                                                List price:
                                                $35.62 /each
                                                Your price:
                                                Qty
                                                6525718 LNGQ120616ERGEKT4 LNGQ120616ERGEKT4 KCPM40 13.0000 .5118 6.3500 .2500 13.1410 .5174 1.5580 .0625 0.0500 .0020 4
                                                  List price:
                                                  $34.93 /each
                                                  Your price:
                                                  Qty
                                                  6525720 LNGQ120616ERGEKT4 LNGQ120616ERGEKT4 KC725M 13.0000 .5118 6.3500 .2500 13.1410 .5174 1.5580 .0625 0.0500 .0020 4
                                                    List price:
                                                    $34.93 /each
                                                    Your price:
                                                    Qty
                                                    6525719 LNGQ120616ERGEKT4 LNGQ120616ERGEKT4 KCSM40 13.0000 .5118 6.3500 .2500 13.1410 .5174 1.5580 .0625 0.0500 .0020 4
                                                      List price:
                                                      $40.52 /each
                                                      Your price:
                                                      Qty
                                                      6525714 LNGQ120616ERGEKT4 LNGQ120616ERGEKT4 KC522M 13.0000 .5118 6.3500 .2500 13.1410 .5174 1.5580 .0625 0.0500 .0020 4
                                                        List price:
                                                        $34.93 /each
                                                        Your price:
                                                        Qty
                                                        6969920 LNGQ120616ERGEKT4 LNGQ120616ERGEKT4 KCK20B 13.0000 .5118 6.3500 .2500 13.1410 .5174 1.5580 .0625     4
                                                          List price:
                                                          $34.93 /each
                                                          Your price:
                                                          Qty
                                                          6525700 LNGQ120620ERGEKT4 LNGQ120620ERGEKT4 KCK20 13.0000 .5118 6.3500 .2500 13.0160 .5124 1.9840 .0781 0.0500 .0020 4
                                                            List price:
                                                            $34.93 /each
                                                            Your price:
                                                            Qty
                                                            6525698 LNGQ120620ERGEKT4 LNGQ120620ERGEKT4 KC522M 13.0000 .5118 6.3500 .2500 13.0160 .5124 1.9840 .0781 0.0500 .0020 4
                                                              List price:
                                                              $34.93 /each
                                                              Your price:
                                                              Qty
                                                              6525711 LNGQ120620ERGEKT4 LNGQ120620ERGEKT4 KCPK30 13.0000 .5118 6.3500 .2500 13.0160 .5124 1.9840 .0781 0.0500 .0020 4
                                                                List price:
                                                                $35.62 /each
                                                                Your price:
                                                                Qty
                                                                6525699 LNGQ120620ERGEKT4 LNGQ120620ERGEKT4 KCK15 13.0000 .5118 6.3500 .2500 13.0160 .5124 1.9840 .0781 0.0500 .0020 4
                                                                  List price:
                                                                  $35.62 /each
                                                                  Your price:
                                                                  Qty
                                                                  6525713 LNGQ120620ERGEKT4 LNGQ120620ERGEKT4 KCSM40 13.0000 .5118 6.3500 .2500 13.0160 .5124 1.9840 .0781 0.0500 .0020 4
                                                                    List price:
                                                                    $40.52 /each
                                                                    Your price:
                                                                    Qty
                                                                    6525712 LNGQ120620ERGEKT4 LNGQ120620ERGEKT4 KCPM40 13.0000 .5118 6.3500 .2500 13.0160 .5124 1.9840 .0781 0.0500 .0020 4
                                                                      List price:
                                                                      $34.93 /each
                                                                      Your price:
                                                                      Qty
                                                                      6969932 LNGQ120620ERGEKT4 LNGQ120620ERGEKT4 KCK20B 13.0000 .5118 6.3500 .2500 13.0160 .5124 1.9840 .0781     4
                                                                        List price:
                                                                        $34.93 /each
                                                                        Your price:
                                                                        Qty
                                                                        6525695 LNGQ120624ERGEKT4 LNGQ120624ERGEKT4 KCPK30 13.0000 .5118 6.3500 .2500 12.8880 .5074 2.3810 .0938 0.0500 .0020 4
                                                                          List price:
                                                                          $35.62 /each
                                                                          Your price:
                                                                          Qty
                                                                          6525697 LNGQ120624ERGEKT4 LNGQ120624ERGEKT4 KCSM40 13.0000 .5118 6.3500 .2500 12.8880 .5074 2.3810 .0938 0.0500 .0020 4
                                                                            List price:
                                                                            $40.52 /each
                                                                            Your price:
                                                                            Qty
                                                                            6525696 LNGQ120624ERGEKT4 LNGQ120624ERGEKT4 KCPM40 13.0000 .5118 6.3500 .2500 12.8880 .5074 2.3810 .0938 0.0500 .0020 4
                                                                              List price:
                                                                              $34.93 /each
                                                                              Your price:
                                                                              Qty
                                                                              6525692 LNGQ120631ERGEKT4 LNGQ120631ERGEKT4 KCPK30 13.0000 .5118 6.3500 .2500 12.6280 .4972 3.1750 .1250 0.0500 .0020 4
                                                                                List price:
                                                                                $35.62 /each
                                                                                Your price:
                                                                                Qty
                                                                                6525693 LNGQ120631ERGEKT4 LNGQ120631ERGEKT4 KCPM40 13.0000 .5118 6.3500 .2500 12.6280 .4972 3.1750 .1250 0.0500 .0020 4
                                                                                  List price:
                                                                                  $34.93 /each
                                                                                  Your price:
                                                                                  Qty
                                                                                  6525694 LNGQ120631ERGEKT4 LNGQ120631ERGEKT4 KCSM40 13.0000 .5118 6.3500 .2500 12.6280 .4972 3.1750 .1250 0.0500 .0020 4
                                                                                    List price:
                                                                                    $40.52 /each
                                                                                    Your price:
                                                                                    Qty
                                                                                    List price:
                                                                                    Discount: %
                                                                                    Your price:
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                                                                                    Grades

                                                                                    • KC522M
                                                                                      KC522M

                                                                                      Coated carbide grade with a AlTiN (PVD) coating. KC522M is engineered to provide better performance in general machining of steel, stainless steel, cast iron, and high-temperature alloys. KC522M resists breakage and offers improved wear resistance and increased strength.

                                                                                      P Steel
                                                                                      S High-Temp Alloys
                                                                                      H Hardened Materials
                                                                                      K Cast Iron
                                                                                      M Stainless Steel
                                                                                    • KC725M
                                                                                      KC725M

                                                                                      Coated carbide grade with an advanced PVD TiAlN coating. KC725M is a high-performance grade for milling steel, stainless steel, and high-temperature alloys. The good thermal shock resistance of the substrate makes this grade ideal for both wet and dry machining. Primarily for use in general and heavy machining.

                                                                                      P Steel
                                                                                      S High-Temp Alloys
                                                                                      M Stainless Steel
                                                                                    • KCK15
                                                                                      KCK15

                                                                                      Coated carbide grade with CVD multilayer coating (TiN/MT TiCN/Al2O3) and advanced Beyond™ post-coat treatment. KCK15 is a wear-resistant grade with balanced toughness for general milling of cast irons at higher speeds. Best results in dry, but can also be used wet.

                                                                                      K Cast Iron
                                                                                    • KCK20
                                                                                      KCK20

                                                                                      A new PVD multilayer AlTiN + AlCrN coated carbide with an excellent combination of wear resistance and coating strength. The KCK20 grade is specifically engineered to maximize coating adhesion and edge strength, making this grade ideal in wet interrupted cutting of gray and ductile irons, and can also be used in dry conditions. It can be used in a wide range of applications, from finishing to roughing, to maximize productivity wherever strength and reliability are needed.

                                                                                      K Cast Iron
                                                                                    • KCK20B
                                                                                      KCK20B

                                                                                      Composition: A multilayered coating with thick MTCVD TiCN-Al2O3-TiOCN layers applied over a carbide substrate specifically engineered for cast irons.
                                                                                      Application: Delivers consistent performance in high-speed machining of grey and ductile irons. The substrate design permits the insert to stay in the cut for a long time at high speeds with minimum deformation. The thick CVD coating and post-coat treatment provide superior wear resistance ensuring long and consistent tool life. Can be applied both in straight and lightly interrupted cuts.

                                                                                      K Cast Iron
                                                                                    • KCPK30
                                                                                      KCPK30

                                                                                      Coated carbide grade with CVD multilayer (TiN/TiCN/Al2O3) and advanced Beyond™ post-coat treatment. Substrate is very tough. KCPK30 has a wide application area in general and roughing milling of steels and cast irons. Performs best dry, but can also be used wet.

                                                                                      P Steel
                                                                                      S High-Temp Alloys
                                                                                      K Cast Iron
                                                                                      M Stainless Steel
                                                                                    • KCPM40
                                                                                      KCPM40

                                                                                      Coated carbide grade with an advanced PVD TiAlN/AlCrN coating. Tough substrate with excellent capability at higher temperatures. KCPM40™ is the first choice for milling steel and stainless steel. Good thermal shock resistance makes this grade ideal for both wet and dry machining. Primarily for use in general and heavy machining.

                                                                                      P Steel
                                                                                      S High-Temp Alloys
                                                                                      M Stainless Steel
                                                                                    • KCSM40
                                                                                      KCSM40

                                                                                      Coated carbide grade with an advanced PVD TiAlN/TiN coating. Premium substrate with newly developed binder composition. KCSM40 is a high-performance grade for titanium, super alloys, and stainless steel. High thermal shock resistance of the substrate makes this grade ideal for wet machining. First choice for roughing and unsuitable cutting conditions.

                                                                                      P Steel
                                                                                      S High-Temp Alloys
                                                                                      M Stainless Steel
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