Package quantity: 5. 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 TiN (titanium nitride). Drill bits compliant with DIN 338. Cylindrical shank.

Drill bits intended for making through and non-through holes. They have two central cutting edges ground at 135° and flutes that effectively evacuate chips upward from the hole.

Drills coated with a TiN layer are intended particularly for machining hard-to-cut materials. The use of TiN coating results in increased drill hardness, allows speeding up the cutting process and achieves better quality of machined parts. The titanium nitride layer, by reducing friction, decreases wear of the cutting edge, thereby extending the drill's service life.

Drill bits are packed in a plastic container with a hole for hanging on a hook.

Product characteristics:

• drill made of high-speed steel HHS 4341

• coated with TiN (titanium nitride)

• very good chip evacuation thanks to the ground spiral

• 2-step tip ground at 135°

• perfectly ground cutting edge

Technical specification:

Steel: HSS 4341

Coating: TiN

Size: 6,80 mm

Tip: 2-step, ground at 135°

Shank: cylindrical