High Speed Steel Drill Bits Set for Sheet Metal

• Titanium coating reduces friction and heat.
• High-speed steel pedal drilling is of higher quality and durable than ordinary twisted drilling.
• These drill bits are perfect for creating smooth, clean and round holes. Suitable for perforated metal, , aluminum, brass, wood, plastic, etc.
• This drill set includes 3 sizes (3-12mm, 4-12mm, 4-20mm) to meet your different needs.
• Black is not a color treatment, but a nitriding treatment to increase hardness and wear resistance.

3 Pieces Step Drill Bit Set