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Mark all as readModular System with the Performance of a Solid Carbide End Mill
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.
- Reconditioning will maximize tool life and your investment.

HARVI™ I TE
- Proprietary end face design — Twisted cutting edge increasing the corner stability, enabling soft cutting action even at highest ramping angles.
- Innovative end face design — Asymmetric divided flutes and variable helix enabling vibration dampening and unmatched feed rates.
- Proprietary relief — with AVF-Technology. A precision faceted eccentric relief reducing vibrations and reducing friction. For excellent cutting conditions in multiple materials.
- Proprietary flute design — Innovative chip gashes within the flutes reducing cutting forces and supporting efficient chip evacuation.
Double Cone
- 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.
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.
Full Slotting
- Vast array of roughing, finishing, profiling, and chamfering tools, and blanks available.
- Covering all end milling applications.
Duo-Lock Wrench
- With a Duo-Lock wrench the tool change becomes easy and can be done in a few seconds.
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P Steel (353)
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P0Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(203)
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P1Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(203)
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P2Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS(211)
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P3Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS(221)
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P4Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS(298)
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P5Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS(353)
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P6High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS(258)
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M Stainless Steel (299)
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M1Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS(299)
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M2High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS(299)
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M3Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS(299)
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K Cast Iron (195)
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K2Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS(195)
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K3High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS(195)
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N1Wrought Aluminum(79)
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N3High-Silicon Aluminum Alloys Si >12.2%(79)
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S High-Temp Alloys (337)
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S1Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS(337)
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S2Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS(327)
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DUO-LOCK (406)
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DLK - DUO-LOCK Modular Connect (136)
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