Sourcingmap 3.4mm Drilling Dia High Speed Steel Cobalt Metric Spiral Twist Drill Bit Rotary Tool for Hardened Metal, Stainless Steel, Cast Iron and Plastic 15pcs

• Size: Bit Diameter: 3.4mm; Flute Length: 33mm / 1.3"; Total Length: 70mm / 2.8"; Shank Diameter: 3.4mm
• Feature: After using full grinding process, it has stronger cutting ability and longer service life.
• Material: Cobalt-containing high-speed steel drill bit, high wear resistance and toughness, not easy to break, sharp cutting edge, effectively improving drilling speed.
• Application: Suitable for processing non-ferrous metals (such as copper and aluminum), non metallic and ferrous metals (such as iron, steel and stainless steel).
• The advantages of full grinding: High geometric precision, strong cutting ability.

This product is made of high speed steel and cobalt material. After using full grinding process, it has stronger cutting ability and longer service life. Suitable for processing non-ferrous metals (such as copper and aluminum), non metallic and ferrous metals (such as iron, steel and stainless steel). Straight shank works in both keyed and key-less drill chucks. The advantages of full grinding drill bit:High geometric precision, strong cutting ability. Smooth surface finish, long service life. Wider using range (rough processing, finishing, semi finishing), and comes with edge clear function, make processing products have better surface finish.