50Pcs Twist Drill Bit Set HSS Shank Titanium Coated High Speed Steel Mini Drill Bit Micro Exactness 1/1.5/2/2.5/3mm Perfect for Wood Plastic Steel and Aluminum Alloy
- The main material is high-speed steel, with titanium and nitriding treatment.High speed steel is more abrasion resistant and durable than other metal materials. good wear resistance and durability..
- High Quality: suitable for drilling holes in alloy steel, wood, nonferrous metal, cast iron and hard plastics.Mainly for thinner, low hardness of wood and soft metal hole processing, for high hardness stainless steel and other materials can not be processed..
- Easy to Removal Chip: spiral grooves with an oxide coating for quick removal..
- Surface Titanium Coated: Increase the HARDNESS of the drill bit, Strengthen heat dissipation, make bit more WEAR-RESISTING..