Notifications

Mark all as read
Read More

Modular End Mills

The ONLY modular system with the performance of a solid carbide end mill

Duo-Lock™ is a new revolutionary coupling for solid carbide end milling applications. This replaceable head design combines a high accuracy in runout and length repeatability with maximum stability, making it a precise and virtually unbreakable interface.

To adapt Duo-Lock™ perfectly to your spindle, a vast array of adapters and extensions are available.

  • Standard length extensions with Safe-Lock™, cylindrical and conical.
  • Cut-to-size extensions, cylindrical and conical.
  • Integral adapters with HSK, PSC, CV, and BT back ends.

Part of the First Choice Program.

Easy to select, easy to order, easy to apply, exceptional performance.

Learn More

Duo-Lock Features

Intermediate diameters are available upon request as custom solutions.

Reconditioning will maximize tool life and your investment.

Vast array of roughing, finishing, profiling, and chamfering tools, and blanks available. Covering all end milling applications.

Double cone eliminates expensive presetting processes by providing an axial .0004" (10μm) repeatability. Length repeatability from insert tip-to-tip within .002" (50μm).

Intelligent thread ensures stress level to remain below critical values, allowing >25% higher transmittable torque.

3rd contact surface delivers high stiffness and highest accuracy below .0002" (5μm) runout.

With a Duo-Lock™ wrench the tool change becomes easy and can be done in a few seconds.

New Icon Test

Solid ER Collets for Duo-Lock

  • Adapting Duo-Lock Modular End Mills to CNC Lathes
  • Duo-Lock solid ER collets turn CNC lathe machines into multitasking machines by providing access of any Duo-Lock modular end mills to ER driven units.
  • These new Duo-Lock solid ER collets maximize machine flexibility through a broad range of
    Duo-Lock modular end mills. From high-performance versatile tools, to roughers and finishers,
    as well as chamfering and corner rounding tools.
  • The short projection from the face of the collet nut provides rigid toolholding and requires a small machine envelope.
  • Compatible with all standard ER collet chucks and ER driven units.
Select Filters
Filters
Filters
View filters in
Metric
Inch
Key Filters
Workpiece Material
Workpiece Material
  • P Steel (328)
    • P0
      Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS
      (178)
    • P1
      Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS
      (178)
    • P2
      Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS
      (186)
    • P3
      Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS
      (196)
    • P4
      Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS
      (273)
    • P5
      Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS
      (328)
    • P6
      High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS
      (233)
  • M Stainless Steel (274)
    • M1
      Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS
      (274)
    • M2
      High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS
      (274)
    • M3
      Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS
      (274)
  • K Cast Iron (170)
    • K1
      Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS
      (170)
    • K2
      Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS
      (170)
    • K3
      High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS
      (170)
  • N Non-Ferrous Materials (79)
    • N1
      Wrought Aluminum
      (79)
    • N2
      Low-Silicon Aluminum Alloys and Magnesium Alloys Si <12.2%
      (79)
    • N3
      High-Silicon Aluminum Alloys Si >12.2%
      (79)
    • N4
      Copper, Brass, Zinc-based on machinability index range of 70-100
      (79)
    • N5
      Nylon, Plastics, Rubbers, Phenolics, Resins, Fiberglass
      (79)
    • N6
      Carbon, Graphite Composites, CFRP
      (34)
    • N7
      MMC's
      (34)
  • S High-Temp Alloys (312)
    • S1
      Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS
      (312)
    • S2
      Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS
      (302)
    • S3
      Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS
      (312)
    • S4
      Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS
      (302)
  • H Hardened Materials (301)
    • H1
      Hardened Materials 44-48 HRC
      (301)
    • H2
      Hardened Materials 48-55 HRC
      (241)
    • H3
      Hardened Materials 56-60 HRC
      (18)
    • H4
      Hardened Materials >60 HRC
      (8)
Select First Choice
  • DE (44)
  • GB (15)
  • US (17)
Applications
Applications
  • Chamfer Milling Chamfer Milling (12)
  • Concave Radius Milling Concave Radius Milling (14)
  • Face Milling Face Milling (223)
  • Pocket Pocket (291)
  • Pocket Helical Pocket Helical (273)
  • Pocket Milling Pocket Milling (299)
  • Pocket Plunge Milling Pocket Plunge Milling (81)
  • Profile Milling Profile Milling (36)
  • Ramping Ramping (268)
  • Shoulder Ball Nose Shoulder Ball Nose (28)
  • Shoulder Milling Shoulder Milling (303)
  • Shoulder Roughing Shoulder Roughing (175)
  • Shoulder Square End Shoulder Square End (263)
  • Slot Ball Nose Slot Ball Nose (49)
  • Slot Milling Slot Milling (181)
  • Slot Square End Slot Square End (163)
Cutting Diameter
Cutting Diameter
  • 9.525 mm (35)
  • 9.7 mm (1)
  • 10.0 mm (31)
  • 11.7 mm (1)
  • 12.0 mm (34)
  • 12.7 mm (44)
  • 15.7 mm (1)
  • 15.875 mm (38)
  • 15.968 mm (3)
  • 16.0 mm (44)
  • 19.05 mm (35)
  • 19.7 mm (1)
  • 20.0 mm (36)
  • 25.0 mm (24)
  • 25.4 mm (32)
  • 31.75 mm (9)
  • 32.0 mm (12)
Cutting Diameter Min to Cutting Diameter Max
Cutting Diameter
Cutting Diameter
  • 0.375 in (35)
  • 0.3819 in (1)
  • 0.3937 in (31)
  • 0.4606 in (1)
  • 0.4724 in (34)
  • 0.5 in (44)
  • 0.6181 in (1)
  • 0.625 in (38)
  • 0.6287 in (3)
  • 0.6299 in (44)
  • 0.75 in (35)
  • 0.7756 in (1)
  • 0.7874 in (36)
  • 0.9843 in (24)
  • 1.0 in (32)
  • 1.25 in (9)
  • 1.2598 in (12)
Cutting Diameter Min to Cutting Diameter Max
Maximum Cutting Diameter
Maximum Cutting Diameter
  • 1.0 in (1)
Maximum Cutting Diameter Min to Maximum Cutting Diameter Max
Maximum Cutting Diameter
Maximum Cutting Diameter
  • 25.4 mm (1)
Maximum Cutting Diameter Min to Maximum Cutting Diameter Max
Cutting Length
Cutting Length
  • 0.0201 in (2)
  • 0.0209 in (2)
  • 0.0248 in (2)
  • 0.0268 in (2)
  • 0.03 in (1)
  • 0.0331 in (2)
  • 0.0335 in (2)
  • 0.0394 in (1)
  • 0.0398 in (1)
  • 0.0399 in (1)
  • 0.0413 in (2)
  • 0.0591 in (1)
  • 0.06 in (3)
  • 0.075 in (2)
  • 0.0787 in (4)
  • 0.1 in (2)
  • 0.1181 in (5)
  • 0.12 in (2)
  • 0.125 in (2)
  • 0.1575 in (3)
  • 0.2812 in (2)
  • 0.2813 in (1)
  • 0.2953 in (3)
  • 0.3543 in (3)
  • 0.375 in (3)
  • 0.4687 in (1)
  • 0.4688 in (2)
  • 0.4724 in (3)
  • 0.5 in (1)
  • 0.5625 in (28)
  • 0.5626 in (1)
  • 0.5906 in (26)
  • 0.689 in (1)
  • 0.7087 in (24)
  • 0.7303 in (1)
  • 0.75 in (33)
  • 0.9375 in (30)
  • 0.9449 in (38)
  • 1.125 in (30)
  • 1.1811 in (32)
  • 1.4764 in (24)
  • 1.5 in (31)
  • 1.875 in (9)
  • 1.8898 in (12)
Cutting Length Min to Cutting Length Max
Cutting Length
Cutting Length
  • 0.51 mm (2)
  • 0.53 mm (2)
  • 0.63 mm (2)
  • 0.68 mm (2)
  • 0.762 mm (1)
  • 0.84 mm (2)
  • 0.85 mm (2)
  • 1.0 mm (1)
  • 1.01 mm (1)
  • 1.013 mm (1)
  • 1.05 mm (2)
  • 1.5 mm (1)
  • 1.524 mm (3)
  • 1.905 mm (1)
  • 2.0 mm (4)
  • 2.54 mm (2)
  • 3.0 mm (5)
  • 3.048 mm (2)
  • 3.175 mm (2)
  • 4.0 mm (3)
  • 4.513 mm (1)
  • 7.144 mm (3)
  • 7.5 mm (3)
  • 9.0 mm (3)
  • 9.525 mm (3)
  • 11.906 mm (3)
  • 12.0 mm (3)
  • 14.288 mm (28)
  • 14.29 mm (1)
  • 15.0 mm (26)
  • 17.5 mm (1)
  • 18.0 mm (24)
  • 18.55 mm (1)
  • 19.05 mm (33)
  • 23.812 mm (20)
  • 23.813 mm (10)
  • 24.0 mm (38)
  • 28.575 mm (30)
  • 30.0 mm (32)
  • 37.5 mm (24)
  • 38.1 mm (31)
  • 47.625 mm (9)
  • 48.0 mm (12)
Cutting Length Min to Cutting Length Max
Reach
Reach
  • 16.64 mm (5)
  • 17.5 mm (5)
  • 21.0 mm (5)
  • 21.4 mm (26)
  • 21.5 mm (2)
  • 21.524 mm (1)
  • 21.648 mm (1)
  • 22.25 mm (5)
  • 22.5 mm (24)
  • 22.6 mm (2)
  • 22.7 mm (1)
  • 27.0 mm (25)
  • 27.2 mm (5)
  • 27.76 mm (5)
  • 28.0 mm (5)
  • 28.6 mm (34)
  • 28.7 mm (2)
  • 28.724 mm (1)
  • 28.762 mm (1)
  • 28.848 mm (1)
  • 33.37 mm (5)
  • 35.0 mm (5)
  • 35.6 mm (2)
  • 35.7 mm (30)
  • 35.824 mm (1)
  • 35.946 mm (1)
  • 36.0 mm (40)
  • 36.1 mm (1)
  • 36.25 mm (1)
  • 42.9 mm (30)
  • 44.5 mm (1)
  • 45.0 mm (32)
  • 56.5 mm (24)
  • 57.2 mm (30)
  • 57.5 mm (1)
  • 71.2 mm (9)
  • 71.7 mm (12)
Reach Min to Reach Max
Reach
Reach
  • 0.6551 in (5)
  • 0.689 in (3)
  • 0.8268 in (2)
  • 0.827 in (1)
  • 0.8425 in (26)
  • 0.8465 in (2)
  • 0.8474 in (1)
  • 0.8523 in (1)
  • 0.876 in (4)
  • 0.8858 in (25)
  • 0.8898 in (2)
  • 0.8937 in (1)
  • 1.063 in (27)
  • 1.0708 in (1)
  • 1.0709 in (4)
  • 1.0929 in (5)
  • 1.1024 in (3)
  • 1.126 in (35)
  • 1.1299 in (2)
  • 1.1309 in (1)
  • 1.1324 in (1)
  • 1.1357 in (1)
  • 1.3138 in (5)
  • 1.378 in (3)
  • 1.4016 in (2)
  • 1.4055 in (29)
  • 1.406 in (1)
  • 1.4104 in (1)
  • 1.4152 in (1)
  • 1.4173 in (42)
  • 1.4212 in (1)
  • 1.4272 in (1)
  • 1.689 in (31)
  • 1.752 in (1)
  • 1.7717 in (34)
  • 2.2244 in (24)
  • 2.252 in (30)
  • 2.2638 in (1)
  • 2.8031 in (9)
  • 2.8228 in (12)
Reach Min to Reach Max
Tool Cutting Edge Angle
Tool Cutting Edge Angle
  • 45.0 (6)
  • 60.0 (6)
  • 90.0 (369)
Tool Cutting Edge Angle Min to Tool Cutting Edge Angle Max
Connection Style
Connection Style
  • DUO-LOCK (381)
Internal Coolant Capability
Internal Coolant Capability
Corner configuration
Corner Style
Corner Style
  • BALL NOSE (28)
  • CHAMFER (46)
  • RADIUS (270)
  • SQUARE END (20)
  • TORUS (17)
Corner Radius
Corner Radius
  • 0.0 mm (66)
  • 0.33 mm (3)
  • 0.381 mm (23)
  • 0.4 mm (9)
  • 0.5 mm (12)
  • 0.595 mm (2)
  • 0.625 mm (2)
  • 0.75 mm (10)
  • 0.762 mm (36)
  • 0.794 mm (2)
  • 0.992 mm (2)
  • 1.0 mm (27)
  • 1.191 mm (2)
  • 1.25 mm (2)
  • 1.5 mm (13)
  • 1.524 mm (27)
  • 1.588 mm (1)
  • 2.0 mm (11)
  • 2.286 mm (19)
  • 2.5 mm (18)
  • 3.0 mm (12)
  • 3.048 mm (19)
  • 4.0 mm (16)
  • 4.762 mm (1)
  • 4.763 mm (2)
  • 5.0 mm (13)
  • 6.0 mm (5)
  • 6.35 mm (10)
  • 7.938 mm (3)
  • 8.0 mm (3)
  • 9.525 mm (3)
  • 10.0 mm (3)
  • 12.5 mm (2)
  • 12.7 mm (2)
Corner Radius Min to Corner Radius Max
Corner Radius
Corner Radius
  • 0.0 in (66)
  • 0.013 in (3)
  • 0.015 in (23)
  • 0.0157 in (9)
  • 0.0197 in (12)
  • 0.0234 in (2)
  • 0.0246 in (2)
  • 0.0295 in (10)
  • 0.03 in (36)
  • 0.0313 in (2)
  • 0.0391 in (2)
  • 0.0394 in (27)
  • 0.0469 in (2)
  • 0.0492 in (2)
  • 0.0591 in (13)
  • 0.06 in (27)
  • 0.0625 in (1)
  • 0.0787 in (11)
  • 0.09 in (19)
  • 0.0984 in (18)
  • 0.1181 in (12)
  • 0.12 in (19)
  • 0.1575 in (16)
  • 0.1875 in (3)
  • 0.1969 in (13)
  • 0.2362 in (5)
  • 0.25 in (10)
  • 0.3125 in (3)
  • 0.315 in (3)
  • 0.375 in (3)
  • 0.3937 in (3)
  • 0.4921 in (2)
  • 0.5 in (2)
Corner Radius Min to Corner Radius Max
Corner Chamfer
Corner Chamfer
  • 0.0 in (341)
  • 0.0197 in (22)
  • 0.02 in (12)
  • 0.075 in (1)
  • 0.0787 in (1)
  • 0.1 in (1)
  • 0.1181 in (1)
  • 0.125 in (1)
  • 0.1575 in (1)
Corner Chamfer Min to Corner Chamfer Max
Corner Chamfer
Corner Chamfer
  • 0.0 mm (341)
  • 0.5 mm (22)
  • 0.508 mm (12)
  • 1.905 mm (1)
  • 2.0 mm (1)
  • 2.54 mm (1)
  • 3.0 mm (1)
  • 3.175 mm (1)
  • 4.0 mm (1)
Corner Chamfer Min to Corner Chamfer Max
Application
Grade Of Cutting Tool
Grade Of Cutting Tool
  • K600 (53)
  • KC639M (8)
  • KC643M (83)
  • KCPM15 (116)
  • KCSM15 (121)
Hand Of Tool
Hand Of Tool
  • R (381)
Rough Finish
Rough Finish
  • F (353)
  • R (28)
Front-End
Front End Type
Front End Type
  • DLK - DUO-LOCK Modular Connect (118)
Front End Style
Front End Style
  • DLK01 DUO-LOCK (118)
Gage Length
Gage Length
  • 41.0000 mm (2)
  • 41.1500 mm (2)
  • 48.0000 mm (1)
  • 49.0000 mm (2)
  • 50.0000 mm (5)
  • 50.8000 mm (7)
  • 52.0000 mm (1)
  • 55.0000 mm (2)
  • 56.0000 mm (1)
  • 57.0000 mm (2)
  • 57.1400 mm (1)
  • 57.1500 mm (9)
  • 58.0000 mm (2)
  • 60.0000 mm (4)
  • 60.4500 mm (2)
  • 61.0000 mm (1)
  • 63.5000 mm (5)
  • 65.0000 mm (4)
  • 68.0000 mm (1)
  • 69.8500 mm (1)
  • 70.0000 mm (1)
  • 75.0000 mm (1)
  • 76.2000 mm (2)
  • 80.0000 mm (3)
  • 82.5500 mm (2)
  • 88.9000 mm (2)
  • 90.0000 mm (2)
  • 95.0000 mm (1)
  • 95.2500 mm (2)
  • 100.0000 mm (1)
  • 101.6000 mm (1)
  • 105.0000 mm (3)
  • 107.9500 mm (2)
  • 114.3000 mm (2)
  • 115.0000 mm (2)
  • 120.0000 mm (2)
  • 127.0000 mm (2)
  • 139.7000 mm (1)
  • 140.0000 mm (1)
  • 158.7500 mm (3)
  • 160.0000 mm (3)
  • 190.5000 mm (5)
  • 200.0000 mm (5)
  • 250.0000 mm (7)
  • 254.0000 mm (7)
Gage Length
Gage Length
  • 1.6140 in (2)
  • 1.6200 in (2)
  • 1.8900 in (1)
  • 1.9290 in (2)
  • 1.9685 in (5)
  • 2.0000 in (7)
  • 2.0470 in (1)
  • 2.1650 in (1)
  • 2.2050 in (1)
  • 2.2440 in (2)
  • 2.2500 in (9)
  • 2.2835 in (2)
  • 2.3620 in (4)
  • 2.3800 in (2)
  • 2.4020 in (1)
  • 2.5000 in (3)
  • 2.5590 in (2)
  • 2.6770 in (1)
  • 2.9530 in (1)
  • 3.0000 in (1)
Center Cutting
Center Cutting
Back-End
Connection Type
Connection Type
  • DUO-LOCK (381)
System Size
System Size
  • BT40 (6)
  • CV40 (5)
  • CV50 (4)
  • DV40 (4)
  • DV50 (4)
  • HSK100A (8)
  • HSK63A (10)
  • PSC63 (9)
Back-End Diameter
Back-End Diameter
  • 0.3593 in (35)
  • 0.378 in (32)
  • 0.4528 in (35)
  • 0.4803 in (44)
  • 0.6053 in (38)
  • 0.6102 in (48)
  • 0.7303 in (35)
  • 0.7598 in (37)
  • 0.9449 in (24)
  • 0.9606 in (32)
  • 1.2106 in (9)
  • 1.2205 in (12)
Back-End Diameter Min to Back-End Diameter Max
Back-End Diameter
Back-End Diameter
  • 9.125 mm (35)
  • 9.6 mm (32)
  • 11.5 mm (35)
  • 12.2 mm (44)
  • 15.375 mm (38)
  • 15.5 mm (48)
  • 18.55 mm (35)
  • 19.3 mm (37)
  • 24.0 mm (24)
  • 24.4 mm (32)
  • 30.75 mm (9)
  • 31.0 mm (12)
Back-End Diameter Min to Back-End Diameter Max
Hidden
Category Path
Category Path
other
Grade
Grade
  • K600 (65)
  • KC639M (8)
  • KC643M (83)
  • KCPM15 (116)
  • KCSM15 (121)
Platform
Platform
  • DUO-LOCK Adapter (118)
  • DUO-LOCK Collets (11)
  • DUO-LOCK End Mills (381)
  • Duo Lock (33)
Tool Unit
Tool Unit
  • I (257)
  • M (286)
Gage Length [L1]
Gage Length [L1]
  • 0.6551 in (5)
  • 0.689 in (3)
  • 0.8268 in (2)
  • 0.827 in (1)
  • 0.8425 in (26)
  • 0.8465 in (2)
  • 0.8474 in (1)
  • 0.8523 in (1)
  • 0.876 in (4)
  • 0.8858 in (25)
  • 0.8898 in (2)
  • 0.8937 in (1)
  • 1.063 in (27)
  • 1.0708 in (1)
  • 1.0709 in (4)
  • 1.0929 in (5)
  • 1.1024 in (3)
  • 1.126 in (35)
  • 1.1299 in (2)
  • 1.1309 in (1)
  • 1.1324 in (1)
  • 1.1357 in (1)
  • 1.3138 in (5)
  • 1.378 in (3)
  • 1.4016 in (2)
  • 1.4055 in (29)
  • 1.406 in (1)
  • 1.4104 in (1)
  • 1.4152 in (1)
  • 1.4173 in (42)
  • 1.4212 in (1)
  • 1.4272 in (1)
  • 1.689 in (31)
  • 1.752 in (1)
  • 1.7717 in (34)
  • 2.2244 in (24)
  • 2.252 in (30)
  • 2.2638 in (1)
  • 2.8031 in (9)
  • 2.8228 in (12)
Gage Length [L1] Min to Gage Length [L1] Max
Gage Length [L1]
Gage Length [L1]
  • 16.64 mm (5)
  • 17.5 mm (5)
  • 21.0 mm (5)
  • 21.4 mm (26)
  • 21.5 mm (2)
  • 21.524 mm (1)