Suggestions

Product Suggestions

Product Categories

Resources

successfully added to cart
View Cart
Read More

Specifically for Stainless Steel Applications

The all-new B21_SGL series solid carbide drills are designed specifically for stainless steel applications, offering high performance and long tool life in high-temperature alloys and regular steel, also.

By combining unique Kennametal features, such as the all-new SGL-point-geometry with patented gashing, a unique flute design, and a best-in-class coating into one tool, the B21*SGL drill is the ultimate high-volume production tool.

 

 

Features and Benefits

New SGL Point Design

  • Improved web thinning and patented gashing, which migrates in a straight cutting edge, enables high cutting parameters (feeds).
  • Creates controlled chips, which lead to a reliable performance.
  • Improved centering capabilities for better positioning accuracy and improved hole quality.

New KCMS15™ Beyond Grade

  • A monolayer PVD AlTiN-coated fi ne-grain carbide with superior surface finish.
  • First choice for stainless steel and high-temperature resistant materials for longer tool life.
  • The coating offers high hardness and excellent abrasive and adhesive wear resistance, as well as enhanced hightemperature properties, increasing its applicability, also, to MQL machining of steel.

Unique Flute Design

  • Large chip-flute cross-section and small web diameter improve the chip evacuation and the capability to drill deeper holes in difficult-to-machine materials.
  • The highly-polished surface ensures superior chip evacuation, even when low-pressure coolant is applied.

Customization

  • Intermediate diameters available as semi-standards.
  • Length variations and step drills available as custom solutions.
  • High step diameter ratios and very complex step drill geometries are not recommended for austenitic stainless steel.
  • Using Kennametal slim line hydraulic chucks is recommended if workpiece contours need to be bypassed.

High-Performance Solid Carbide Drills Tooling Solutions

Select Filters
Filters
Filters
Filters
View filters in
Metric
Inch
Key Filters
Workpiece Material
  • P Steel (461)
    • P0
      Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS
      (461)
    • P1
      Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS
      (461)
    • P2
      Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS
      (461)
    • P3
      Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS
      (461)
    • P4
      Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS
      (461)
    • P5
      Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS
      (461)
    • P6
      High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS
      (461)
  • M Stainless Steel (461)
    • M1
      Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS
      (461)
    • M2
      High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS
      (461)
    • M3
      Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS
      (461)
  • S High-Temp Alloys (461)
    • S1
      Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS
      (461)
    • S2
      Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS
      (461)
    • S3
      Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS
      (461)
    • S4
      Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS
      (461)
Applications
  • Convex Drilling Convex Drilling (461)
  • Corner Style SquareEnd Drilling Corner Style SquareEnd Drilling (461)
  • CornerStyle Chamfer Drilling CornerStyle Chamfer Drilling (461)
  • Counterboring Counterboring (461)
  • Countersinking Countersinking (461)
  • Drilling Drilling (461)
  • Flat Bottom Drilling Flat Bottom Drilling (461)
  • Inclined Entry Drilling Inclined Entry Drilling (461)
  • Inclined Exit Drilling Inclined Exit Drilling (461)
  • Pre-Condition Pre-Condition (461)
  • Stacked Plates Drilling Stacked Plates Drilling (461)
  • X-Offset Drilling X-Offset Drilling (461)
Cutting Diameter
  • 2.5 (1)
  • 3.0 (3)
  • 3.048 (2)
  • 3.1 (1)
  • 3.175 (3)
  • 3.2 (3)
  • 3.264 (2)
  • 3.3 (3)
  • 3.4 (2)
  • 3.455 (3)
  • 3.5 (3)
  • 3.571 (2)
  • 3.6 (1)
  • 3.658 (2)
  • 3.7 (3)
  • 3.734 (1)
  • 3.8 (3)
  • 3.861 (1)
  • 3.9 (1)
  • 3.97 (6)
  • 4.0 (3)
  • 4.039 (2)
  • 4.0894 (1)
  • 4.1 (3)
  • 4.1554 (1)
  • 4.156 (1)
  • 4.2 (3)
  • 4.2164 (1)
  • 4.217 (1)
  • 4.3 (3)
  • 4.3656 (3)
  • 4.4 (1)
  • 4.5 (3)
  • 4.5796 (1)
  • 4.6 (1)
  • 4.6228 (1)
  • 4.623 (1)
  • 4.7 (3)
  • 4.7625 (3)
  • 4.763 (3)
  • 4.8 (3)
  • 4.8514 (1)
  • 4.852 (2)
  • 4.9 (2)
  • 5.0 (3)
  • 5.1 (3)
  • 5.1054 (1)
  • 5.106 (2)
  • 5.1587 (1)
  • 5.1594 (2)
  • 5.2 (3)
  • 5.26 (1)
  • 5.2603 (1)
  • 5.3 (2)
  • 5.4 (2)
  • 5.41 (1)
  • 5.4102 (1)
  • 5.5 (3)
  • 5.5575 (3)
  • 5.558 (3)
  • 5.6 (1)
  • 5.6159 (1)
  • 5.616 (1)
  • 5.7 (1)
  • 5.8 (3)
  • 5.9 (1)
  • 5.954 (2)
  • 6.0 (3)
  • 6.1 (2)
  • 6.2 (2)
  • 6.3 (2)
  • 6.35 (6)
  • 6.4 (2)
  • 6.5 (3)
  • 6.5278 (2)
  • 6.528 (2)
  • 6.6 (1)
  • 6.6294 (1)
  • 6.63 (2)
  • 6.7 (2)
  • 6.7285 (1)
  • 6.746 (3)
  • 6.7462 (3)
  • 6.8 (3)
  • 6.9 (2)
  • 6.9088 (1)
  • 6.909 (1)
  • 7.0 (3)
  • 7.0358 (1)
  • 7.036 (1)
  • 7.1 (2)
  • 7.145 (6)
  • 7.2 (1)
  • 7.3 (1)
  • 7.4 (2)
  • 7.5 (3)
  • 7.5406 (2)
  • 7.541 (1)
  • 7.5413 (3)
  • 7.6 (1)
  • 7.7 (1)
  • 7.8 (3)
  • 7.9 (1)
  • 7.9375 (6)
  • 8.0 (3)
  • 8.1 (2)
  • 8.2 (2)
  • 8.2042 (1)
  • 8.3337 (3)
  • 8.3344 (3)
  • 8.4 (3)
  • 8.4328 (1)
  • 8.433 (2)
  • 8.5 (3)
  • 8.6 (2)
  • 8.6106 (1)
  • 8.611 (1)
  • 8.7 (2)
  • 8.7325 (3)
  • 8.733 (3)
  • 8.8 (3)
  • 8.9 (1)
  • 9.0 (3)
  • 9.093 (1)
  • 9.1 (1)
  • 9.1288 (3)
  • 9.129 (3)
  • 9.2 (1)
  • 9.3 (1)
  • 9.347 (1)
  • 9.3472 (1)
  • 9.4 (1)
  • 9.5 (3)
  • 9.525 (6)
  • 9.6 (1)
  • 9.7 (2)
  • 9.7028 (1)
  • 9.8 (2)
  • 9.9 (1)
  • 9.921 (3)
  • 9.9212 (3)
  • 10.0 (3)
  • 10.1 (1)
  • 10.2 (3)
  • 10.3 (1)
  • 10.32 (6)
  • 10.4 (2)
  • 10.5 (3)
  • 10.7 (1)
  • 10.7156 (3)
  • 10.7163 (3)
  • 10.8 (2)
  • 11.0 (3)
  • 11.0261 (1)
  • 11.1 (1)
  • 11.1125 (3)
  • 11.113 (3)
  • 11.2 (2)
  • 11.4 (1)
  • 11.5 (2)
  • 11.5087 (3)
  • 11.5094 (3)
  • 11.7 (1)
  • 11.8 (2)
  • 11.9075 (3)
  • 11.908 (3)
  • 12.0 (3)
  • 12.1 (1)
  • 12.2 (2)
  • 12.3 (1)
  • 12.3038 (3)
  • 12.304 (3)
  • 12.5 (3)
  • 12.7 (6)
  • 12.8 (2)
  • 12.9 (1)
  • 13.0 (3)
  • 13.0785 (1)
  • 13.096 (1)
  • 13.0962 (1)
  • 13.1 (1)
  • 13.2 (1)
  • 13.3 (1)
  • 13.495 (1)
  • 13.5 (3)
  • 13.8 (1)
  • 13.8906 (1)
  • 13.8963 (1)
  • 14.0 (3)
  • 14.1 (2)
  • 14.2 (1)
  • 14.2875 (3)
  • 14.288 (3)
  • 14.3 (1)
  • 14.4 (1)
  • 14.5 (2)
  • 14.6 (1)
  • 14.666 (1)
  • 14.8 (1)
  • 15.0 (2)
  • 15.1 (1)
  • 15.3 (1)
  • 15.5 (2)
  • 15.7 (1)
  • 15.875 (6)
  • 16.0 (2)
  • 16.0782 (1)
  • 16.1 (1)
  • 16.129 (1)
  • 16.5 (2)
  • 16.67 (3)
  • 17.0 (2)
  • 17.4625 (3)
  • 17.463 (2)
  • 17.5 (2)
  • 17.7 (1)
  • 18.0 (2)
  • 18.5 (2)
  • 19.0 (1)
  • 19.05 (4)
  • 19.159 (1)
  • 19.3 (1)
  • 19.4462 (1)
  • 19.5 (1)
  • 20.0 (1)
  • 20.5 (1)
to
Cutting Diameter
  • 0.0984 (1)
  • 0.1181 (3)
  • 0.12 (2)
  • 0.122 (1)
  • 0.125 (3)
  • 0.126 (3)
  • 0.1285 (2)
  • 0.1299 (3)
  • 0.1339 (2)
  • 0.136 (3)
  • 0.1378 (3)
  • 0.1406 (2)
  • 0.1417 (1)
  • 0.144 (2)
  • 0.1457 (3)
  • 0.147 (1)
  • 0.1496 (3)
  • 0.152 (1)
  • 0.1535 (1)
  • 0.1563 (6)
  • 0.1575 (3)
  • 0.159 (2)
  • 0.161 (1)
  • 0.1614 (3)
  • 0.1636 (2)
  • 0.1654 (3)
  • 0.166 (2)
  • 0.1693 (3)
  • 0.1719 (3)
  • 0.1732 (1)
  • 0.1772 (3)
  • 0.1803 (1)
  • 0.1811 (1)
  • 0.182 (2)
  • 0.185 (3)
  • 0.1875 (6)
  • 0.189 (3)
  • 0.191 (3)
  • 0.1929 (2)
  • 0.1969 (3)
  • 0.2008 (3)
  • 0.201 (3)
  • 0.2031 (3)
  • 0.2047 (3)
  • 0.2071 (2)
  • 0.2087 (2)
  • 0.2126 (2)
  • 0.213 (2)
  • 0.2165 (3)
  • 0.2188 (6)
  • 0.2205 (1)
  • 0.2211 (2)
  • 0.2244 (1)
  • 0.2283 (3)
  • 0.2323 (1)
  • 0.2344 (2)
  • 0.2362 (3)
  • 0.2402 (2)
  • 0.2441 (2)
  • 0.248 (2)
  • 0.25 (6)
  • 0.252 (2)
  • 0.2559 (3)
  • 0.257 (4)
  • 0.2598 (1)
  • 0.261 (3)
  • 0.2638 (2)
  • 0.2649 (1)
  • 0.2656 (6)
  • 0.2677 (3)
  • 0.2717 (2)
  • 0.272 (2)
  • 0.2756 (3)
  • 0.277 (2)
  • 0.2795 (2)
  • 0.2813 (6)
  • 0.2835 (1)
  • 0.2874 (1)
  • 0.2913 (2)
  • 0.2953 (3)
  • 0.2969 (6)
  • 0.2992 (1)
  • 0.3031 (1)
  • 0.3071 (3)
  • 0.311 (1)
  • 0.3125 (6)
  • 0.315 (3)
  • 0.3189 (2)
  • 0.3228 (2)
  • 0.323 (1)
  • 0.3281 (6)
  • 0.3307 (3)
  • 0.332 (3)
  • 0.3346 (3)
  • 0.3386 (2)
  • 0.339 (2)
  • 0.3425 (2)
  • 0.3438 (6)
  • 0.3465 (3)
  • 0.3504 (1)
  • 0.3543 (3)
  • 0.358 (1)
  • 0.3583 (1)
  • 0.3594 (6)
  • 0.3622 (1)
  • 0.3661 (1)
  • 0.368 (2)
  • 0.3701 (1)
  • 0.374 (3)
  • 0.375 (6)
  • 0.378 (1)
  • 0.3819 (2)
  • 0.382 (1)
  • 0.3858 (2)
  • 0.3898 (1)
  • 0.3906 (6)
  • 0.3937 (3)
  • 0.3976 (1)
  • 0.4016 (3)
  • 0.4055 (1)
  • 0.4063 (6)
  • 0.4094 (2)
  • 0.4134 (3)
  • 0.4213 (1)
  • 0.4219 (6)
  • 0.4252 (2)
  • 0.4331 (3)
  • 0.4341 (1)
  • 0.437 (1)
  • 0.4375 (6)
  • 0.4409 (2)
  • 0.4488 (1)
  • 0.4528 (2)
  • 0.4531 (6)
  • 0.4606 (1)
  • 0.4646 (2)
  • 0.4688 (6)
  • 0.4724 (3)
  • 0.4764 (1)
  • 0.4803 (2)
  • 0.4843 (1)
  • 0.4844 (6)
  • 0.4921 (3)
  • 0.5 (6)
  • 0.5039 (2)
  • 0.5079 (1)
  • 0.5118 (3)
  • 0.5149 (1)
  • 0.5156 (2)
  • 0.5157 (1)
  • 0.5197 (1)
  • 0.5236 (1)
  • 0.5313 (1)
  • 0.5315 (3)
  • 0.5433 (1)
  • 0.5469 (1)
  • 0.5471 (1)
  • 0.5512 (3)
  • 0.5551 (2)
  • 0.5591 (1)
  • 0.5625 (6)
  • 0.563 (1)
  • 0.5669 (1)
  • 0.5709 (2)
  • 0.5748 (1)
  • 0.5774 (1)
  • 0.5827 (1)
  • 0.5906 (2)
  • 0.5945 (1)
  • 0.6024 (1)
  • 0.6102 (2)
  • 0.6181 (1)
  • 0.625 (6)
  • 0.6299 (2)
  • 0.633 (1)
  • 0.6339 (1)
  • 0.635 (1)
  • 0.6496 (2)
  • 0.6563 (3)
  • 0.6693 (2)
  • 0.6875 (5)
  • 0.689 (2)
  • 0.6969 (1)
  • 0.7087 (2)
  • 0.7283 (2)
  • 0.748 (1)
  • 0.75 (4)
  • 0.7543 (1)
  • 0.7598 (1)
  • 0.7656 (1)
  • 0.7677 (1)
  • 0.7874 (1)
  • 0.8071 (1)
to
Maximum Hole Depth [L4]
  • 0.4331 (1)
  • 0.5512 (10)
  • 0.6693 (8)
  • 0.67 (1)
  • 0.685 (1)
  • 0.7874 (16)
  • 0.8425 (1)
  • 0.8898 (3)
  • 0.9055 (14)
  • 0.9449 (12)
  • 1.0197 (5)
  • 1.1142 (5)
  • 1.126 (4)
  • 1.1417 (25)
  • 1.25 (1)
  • 1.2992 (10)
  • 1.3661 (4)
  • 1.374 (5)
  • 1.378 (40)
  • 1.5 (5)
  • 1.5591 (4)
  • 1.5748 (13)
  • 1.5866 (9)
  • 1.6142 (10)
  • 1.6929 (39)
  • 1.7717 (8)
  • 1.8307 (1)
  • 1.8898 (10)
  • 1.9173 (8)
  • 1.9291 (27)
  • 2.0 (2)
  • 2.0079 (7)
  • 2.0866 (1)
  • 2.0906 (6)
  • 2.1654 (4)
  • 2.185 (1)
  • 2.189 (4)
  • 2.2047 (20)
  • 2.2441 (6)
  • 2.3622 (21)
  • 2.4803 (14)
  • 2.5 (4)
  • 2.5197 (6)
  • 2.5394 (2)
  • 2.7953 (8)
  • 2.874 (2)
  • 2.9331 (1)
  • 3.0 (4)
  • 3.0315 (4)
  • 3.0709 (1)
  • 3.1496 (11)
  • 3.3465 (1)
  • 3.5 (4)
  • 3.7795 (10)
  • 4.0 (4)
  • 4.4094 (6)
  • 4.5 (1)
  • 5.0 (1)
  • 5.0394 (2)
  • 5.5 (2)
  • 6.0 (1)
to
Maximum Hole Depth [L4]
  • 11.0 (1)
  • 14.0 (10)
  • 17.0 (9)
  • 17.4 (1)
  • 20.0 (16)
  • 21.4 (1)
  • 22.6 (3)
  • 23.0 (14)
  • 24.0 (12)
  • 25.9 (5)
  • 28.3 (5)
  • 28.6 (4)
  • 29.0 (25)
  • 31.75 (1)
  • 33.0 (10)
  • 34.7 (4)
  • 34.9 (5)
  • 35.0 (40)
  • 38.1 (5)
  • 39.6 (4)
  • 40.0 (13)
  • 40.3 (9)
  • 41.0 (10)
  • 43.0 (39)
  • 45.0 (8)
  • 46.5 (1)
  • 48.0 (10)
  • 48.7 (8)
  • 49.0 (27)
  • 50.8 (2)
  • 51.0 (7)
  • 53.0 (1)
  • 53.1 (6)
  • 55.0 (4)
  • 55.5 (1)
  • 55.6 (4)
  • 56.0 (20)
  • 57.0 (6)
  • 60.0 (21)
  • 63.0 (14)
  • 63.5 (4)
  • 64.0 (6)
  • 64.5 (2)
  • 71.0 (8)
  • 73.0 (2)
  • 74.5 (1)
  • 76.2 (4)
  • 77.0 (4)
  • 78.0 (1)
  • 80.0 (11)
  • 85.0 (1)
  • 88.9 (4)
  • 96.0 (10)
  • 101.6 (4)
  • 112.0 (6)
  • 114.3 (1)
  • 127.0 (1)
  • 128.0 (2)
  • 139.7 (2)
  • 152.4 (1)
to
Reach
  • 16.0 (1)
  • 20.0 (10)
  • 23.0 (1)
  • 24.0 (9)
  • 27.0 (1)
  • 28.0 (30)
  • 29.0 (3)
  • 34.0 (17)
  • 35.0 (4)
  • 36.0 (17)
  • 37.084 (1)
  • 38.0 (5)
  • 40.0 (10)
  • 41.0 (8)
  • 43.0 (5)
  • 44.0 (21)
  • 44.958 (1)
  • 46.0 (4)
  • 47.0 (19)
  • 49.0 (10)
  • 50.0 (9)
  • 51.0 (4)
  • 53.0 (29)
  • 54.0 (4)
  • 55.0 (13)
  • 56.0 (10)
  • 58.928 (2)
  • 59.0 (1)