Drill bit set AWTools AW41990 – 5 pieces

AWTools AW41990 – 5 pieces drill bit set contains five precision-ground HSS-G M2 high-speed steel drill bits finished with black oxide. Each bit features two cutting edges and a centering point with a 135° point angle, supplied together in a compact case. The set is intended for general-purpose drilling in a range of materials and is compatible with standard drill chucks for both handheld and bench drilling machines.

Advantages

The HSS-G M2 high-speed steel construction provides high wear resistance and a low risk of breakage under normal working conditions. Precision grinding and two cutting edges ensure consistent drilling performance and cleaner holes. The black oxide finish improves surface durability and provides mild corrosion resistance while the 135° centering point supports accurate starts and reduced walking on the workpiece. The set format with a case keeps bits organized and easy to transport.

Suitable for

• Drilling alloyed and unalloyed steel
• Drilling gray cast iron
• Drilling non-ferrous metals (aluminium, copper, brass)
• Drilling plastics
• General DIY, repair and construction tasks requiring multiple identical bits

Key specifications

• Material: HSS-G M2 high-speed steel, precision ground
• Cutting edges: Two-cutting-edge design
• Surface finish: Black oxide
• Point angle: 135° centering point
• Wear resistance: High
• Breakage risk: Reduced under normal use
• Supply format: Pack of 5 drill bits in a storage case
• Compatibility: Standard drill chucks (handheld and bench drills)

How to use

Select a drill bit size appropriate for the material and hole diameter required, clamp the bit securely in a standard drill chuck, and set the drill speed according to the material being worked. Use cutting fluid or lubricant when drilling steel and other metals to extend tool life and reduce heat. Start drilling with light pressure to allow the 135° centering point to engage, then apply steady pressure until the hole is complete. After use, clean chips from the flutes and store the bits in the supplied case.

Usage recommendations

For best results when drilling metals, use moderate speeds and appropriate cutting fluid. Avoid excessive feed force to reduce risk of bit breakage. For plastics, use lower speeds and minimal pressure to prevent melting and ensure a clean hole. Inspect bits periodically for wear and replace when cutting edges become blunt.