HSS 4.50 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.
Gold-and-black metal drill bits made of high-speed steel 4341 HSS, coated with TiN (titanium nitride). Drill bits compliant with DIN 338. Cylindrical shank.
The drill bits are intended for making through and blind holes. They have two central cutting edges ground at 135° and flutes that effectively evacuate chips up the hole.
Drills coated with a TiN layer are particularly intended for machining hard-to-cut materials. The use of a TiN coating results in increased drill hardness, allows acceleration of the cutting process and provides better quality of machined parts. The titanium nitride layer, by reducing friction, decreases cutting-edge wear, and consequently extends the drill's service life.
The drills are packed in a plastic container with a hole for hanging on a hook.
Product characteristics:
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drill made of high-speed steel HHS 4341
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coated with TiN (titanium nitride)
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very good chip evacuation thanks to the ground spiral
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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: 4,50 mm
Point: 2-step, ground at 135°
Shank: cylindrical