Drill bits set AWTools AW42212 for metal, cobalt, 13 pcs, sizes 1.5–6.5 mm

AWTools AW42212 is a 13-piece cobalt drill bit set designed for drilling metal. The set covers sizes from 1.5 mm to 6.5 mm and is intended for use with hand drills and drill presses. Cobalt alloy construction increases heat resistance and wear performance compared with standard high-speed steel bits, making these drills suitable for cutting through various steels and other hard materials encountered in metalworking, maintenance, and fabrication tasks.

Advantages

The cobalt composition provides improved hardness at elevated temperatures, which helps maintain cutting edges during prolonged or high-speed drilling. Precision-ground tips ensure accurate centring and reduced walking on the workpiece. The set format offers a wide range of small to medium diameters, allowing users to select the appropriate size for pilot holes, through-holes, and screw clearances. These bits are compatible with standard chucks and can be used in both portable drills and bench-mounted machines.

Suitable for

• Drilling mild and stainless steel
• Metal fabrication and repair work
• Maintenance tasks requiring durable drill tips
• Creating pilot holes and through-holes for fasteners
• Use in hand drills and drill presses

Key specifications

• Set composition: 13 drill bits
• Diameter range: 1.5 mm to 6.5 mm
• Material: cobalt alloy (enhanced heat resistance)
• Tip type: precision-ground point for reduced walking
• Intended use: metal drilling (suitable for hard materials)

How to use

Select the drill bit size appropriate for the hole diameter required. Secure the workpiece and mark the drilling point; for accurate starts use a centre punch if needed. Fit the bit into a compatible drill chuck and tighten securely. Use moderate feed pressure and an appropriate spindle speed for the material being drilled—lower speeds for larger diameters and harder steels. Apply cutting fluid or coolant when drilling steel to reduce heat buildup and extend bit life. Withdraw the bit periodically to clear chips when drilling deep holes.

Usage recommendations

For best results, start with a smaller pilot hole before enlarging to the final diameter, and use cutting lubricant when working with stainless or high-hardness steels. Store the drill bits in their case to prevent edge damage and to keep sizes organised.