HSS 3.30 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 high-speed steel 4341 (HSS), coated with a TiN (titanium nitride) layer. Drill bits compliant with DIN 338. Cylindrical shank.
Drills intended for making both through and non-through holes. They have two central cutting edges ground at an angle of 135° and flutes that effectively evacuate chips upward out of the hole.
TiN-coated drill bits are particularly intended for machining hard-to-cut materials. The TiN coating results in a higher drill hardness, allows faster cutting and produces better quality of the machined parts. The titanium nitride layer reduces friction, which decreases cutting-edge wear and thus extends the drill life.
Drills are packaged in a plastic container with a hole for hanging on a peg.
Product characteristics:
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drill made of high-speed steel HSS 4341
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coated with TiN (titanium nitride)
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very good chip evacuation thanks to ground spiral
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2-step tip ground at 135°
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perfectly ground cutting edge
Technical specification:
Steel: HSS 4341
Coating: TiN
Size: 3.30 mm
Tip: 2-step, ground at 135°
Shank: cylindrical