AWTOOLS HSS-Co Cobalt Twist Drill Bit Set 25-Piece 1-13 mm Metal Drilling

The AWTOOLS HSS-Co Cobalt Twist Drill Bit Set (model AW42225) is a professional-grade 25-piece kit designed for precision drilling in metal. Manufactured from high-speed steel with 5% cobalt content, these bits offer exceptional heat resistance and durability for demanding applications. The set includes a full range of sizes from 1.0 mm to 13.0 mm, all featuring a 135° split point for self-centering and reduced walking. Each bit is fully ground with a bright finish and conforms to DIN 338 standard. Supplied in a sturdy metal storage case, this set is ideal for use with corded and cordless drills.

Advantages

High-performance cobalt steel alloy ensures long tool life and efficient cutting in hard materials. The 135° split point eliminates the need for pilot holes, improving accuracy and reducing effort. The metal case keeps bits organized and protected.

Suitable for

• Drilling in stainless steel, alloyed steel, non-alloyed steel, cast iron, and non-ferrous metals
• Professional workshops, metal fabrication, automotive repair, and DIY metalworking

Key specifications

• Drill Bit Type: Twist Drill Bit Set
• Material: HSS-Co (High-Speed Steel Cobalt), 5% Cobalt
• Number of Pieces: 25
• Drill Bit Sizes: 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
• Shank Type: Cylindrical
• Standard: DIN 338
• Point Angle: 135°
• Point Type: Split Point (Self-centering)
• Surface Finish: Bright
• Manufacturing Process: Fully Ground
• Storage Case Material: Metal
• Compatibility: Corded and Cordless Drills
• Tolerance Class: h8

Recommendations

For best results, use at appropriate speeds and apply cutting fluid when drilling hard metals. Always wear safety glasses.