Drill bit set AWTools AW42100 — pack of 5 pieces

AWTools AW42100 — pack of 5 drill bits made of HSS-Co high-speed steel with 5% cobalt, supplied in a compact case. Each bit is precision ground and double-sided, featuring a 135° point angle for improved centring and reduced walking. The set is designed for general drilling tasks in metalworking and plastics, offering higher heat resistance and longer tool life compared with standard high-speed steel bits. Check drill chuck compatibility and required diameter before use.

Advantages

The HSS-Co construction with 5% cobalt increases hardness and hot hardness, improving wear resistance during demanding drilling operations. Precision grinding and double-sided geometry deliver consistent cutting performance and the option to re-sharpen both ends when needed. The 135° point angle reduces the need for pre-drilling or separate centring, while the supplied case keeps the five identical bits organised and protected.

Suitable for

• Drilling alloyed and unalloyed steel
• Drilling grey cast iron
• Drilling non-ferrous metals such as aluminium and brass
• Drilling technical plastics and composite materials
• Workshop repair, maintenance and repeated production tasks

Key specifications

• Material: HSS-Co high-speed steel with 5% cobalt
• Quantity: 5 identical drill bits in a case
• Tip geometry: 135° split-point style for reduced walking
• Manufacturing: precision ground, double-sided for re-sharpening
• Heat resistance: enhanced compared with standard HSS
• Intended materials: alloyed/unalloyed steel, grey cast iron, non-ferrous metals, plastics

How to use

Mount a suitable bit securely in the drill chuck and verify correct clamping before operation. Select a drill speed appropriate for the material: lower speeds for hard steels, higher speeds for non-ferrous metals and plastics. Use cutting fluid or coolant when drilling steel or other metals to reduce heat and extend bit life. Apply steady feed pressure and avoid excessive side load; allow the bit to clear chips regularly. After use, store the bits in the supplied case to protect the cutting edges.

Usage recommendations

For best results when drilling steel or cast iron, use a compatible cutting fluid and moderate rotational speed. For plastics and aluminium, reduce speed and use a pecking motion to prevent melting or clogging. Re-sharpen double-sided bits when worn to restore performance; replace when re-sharpening can no longer restore correct geometry.