HSS 3.20 mm black & gold metal twist drill bit – Pack of 10
Package quantity: 10. This product is sold only as one complete package. The price shown is for one complete package.
Black-and-gold metal drill bits made of 4341 HSS high-speed steel, coated with a TiN (titanium nitride) coating. Drill bits comply with the DIN 338. Cylindrical shank.
The drill bits are intended for drilling through and blind holes. They have two central cutting edges ground at 135° and flutes that effectively evacuate chips upward from the hole.
Drill bits coated with a TiN layer are intended especially for machining hard-to-cut materials. The TiN coating results in a increase in the hardness of the drill bit, allows acceleration of the cutting process and enables better quality of the machined parts. The titanium nitride layer, by reducing friction, decreases cutting-edge wear, and thus extends the drill bit's service life.
The drill bits are packed in a plastic container with a hole for hanging on a peg.
Product characteristics:
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drill made of HHS 4341 high-speed steel
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coated with TiN (titanium nitride)
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very good chip evacuation thanks to the ground helix
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2-step point ground at 135°
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perfectly ground cutting edge
Technical specification:
Steel: HSS 4341
Coating: TiN
Size: 3.20 mm
Point: 2-step, ground at 135°
Shank: cylindrical