IRWIN Cobalt Drill Bit Set 25pcs 1.0 - 13.0 mm in 0.5 mm increments

The IRWIN Cobalt Drill Bit Set offers 25 high-performance HSS Cobalt (M35) drill bits ranging from 1.0 mm to 13.0 mm in 0.5 mm increments. Designed for precision and durability, this set is ideal for drilling into high alloy steel, stainless steel, cast iron, bronze, welding seams, and hardened steel.

Advantages

Up to 4x longer life than standard HSS-R bits thanks to 5% cobalt content and precision ground manufacturing. The 135° split point ensures self-centering and reduces walking, providing clean, accurate holes every time.

Suitable for

• High alloy steel
• Stainless steel
• Cast iron
• Bronze
• Welding seams
• Hardened steel

Key specifications

• Product Type: Drill Bit Set
• Bit Material: HSS Cobalt (M35)
• Cobalt Content: 5%
• Number of Pieces: 25
• Drill Bit Sizes Included: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0 mm
• Size Increment: 0.5 mm
• Drill Point Angle: 135°
• Drill Point Type: Split Point
• Shank Type: Cylindrical (Round)
• Standard: DIN 338
• Case Material: Metal
• Manufacturing Process: Precision Ground
• Heat Resistance: High
• Self-Centering: Yes (Split Point)
• Compatibility: Corded and Cordless Drills, Drill Presses

Recommendations

For best results, use with a variable speed drill at appropriate speeds for the material. Always wear safety glasses and secure the workpiece.