Material: Made from high-speed steel, which has undergone high-temperature quenching and full-body heat treatment, Function: Used for the precise positioning of workpieces during hole drilling, and to guide the twist drill during the drilling process, thereby minimising errors. Applications: Suitable for machining various metal materials, including wood, steel, cast iron, stainless steel and aluminium alloys. Efficient Chip Removal: These metal drill bits feature a large chip flute design, enabling fast cutting speeds and smooth chip evacuation, preventing chip build-up and making the cutting process easier and more efficient. A 60-Degree Angle center drill is very useful in drilling accurate center holes, 60-degree countersink holes or starter holes for bigger drill bits in metal-working., Manufacturer: MZPXQMSYK