KMH Drills • Hard Materials
The KMH drills are designed specifically for challenging machining tasks involving hard materials. They are engineered with an advanced point design that incorporates a curved cutting edge with a corner chamfer to ensure maximum corner stability and mitigate the risk of chipping along the cutting edge. Complemented by a specialized flute design reinforced with a robust web, these drills exhibit exceptional strength, ideal for tough applications where short chips are common. The high-temperature and shock-resistant AlTiN coating further fortifies the drills prolonging tool life when operating in rough conditions. The KMH drills are ideal for heavy interrupted cuts and crankshafts -- offering unmatched durability and reliability.
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- Steel (76)
- Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS(76)
- Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS(76)
- High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS(76)
- Cast Iron (76)
- Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS(76)
- Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS(76)
- High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS(76)
- Hardened Materials (76)
- Hardened Materials 44-48 HRC(76)
- Hardened Materials 48-55 HRC(76)
- Hardened Materials 56-60 HRC(76)
- Hardened Materials >60 HRC(76)
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