Drill bit pack AWTools AW41890 — 5 pieces

AWTools AW41890 — 5 pieces is a pack of five precision drill bits manufactured from HSS-G M2 high-speed steel and supplied in a compact case. Each bit is precision ground with two cutting edges and finished with a black oxide coating. The bits feature a 135° centering point for accurate starts and are designed for drilling alloyed and unalloyed steel, grey cast iron, non-ferrous metals and plastic. The set of five identical bits is intended for workshop use, repairs and general drilling tasks where repeatable, reliable performance is required.

Advantages

The HSS-G M2 material provides high wear resistance and maintains cutting performance at elevated temperatures. Precision grinding and two cutting edges reduce cutting forces and improve hole quality. Black oxide finish lowers friction and increases corrosion resistance. The 135° centering point reduces walking at drill start, lowering the risk of misaligned holes and bit breakage. Supplied in a case, the set keeps the bits organized and protected when transported or stored.

Suitable for

• Drilling alloyed and unalloyed steels
• Working with grey cast iron
• Drilling non-ferrous metals such as aluminium and brass
• Making holes in plastic components
• Workshop repairs, maintenance and production tasks requiring multiple identical bits

Key specifications

• Material: HSS-G M2 high-speed steel
• Flute/cutting style: two cutting edges, precision ground
• Coating/finish: black oxide
• Point angle: 135° centering point
• Pack contents: 5 identical drill bits in a storage case
• Intended materials: alloyed and unalloyed steel, grey cast iron, non-ferrous metals, plastic

How to use

Select the correct drill size for your application and secure the workpiece. Fit the AWTools AW41890 bit in a compatible drill chuck and ensure it is clamped firmly and runs true. Start drilling at moderate speed suitable for HSS bits and the material being drilled; apply steady feed pressure without forcing the bit. Use cutting fluid when drilling steels and other metals to extend bit life and improve chip evacuation. After use, clean debris from flutes and store the bits in the supplied case to protect the cutting edges.

Usage recommendations

For best results when drilling steels and cast iron, use cutting or cooling fluid and avoid excessive speeds which can reduce tool life. When drilling thin sheets or materials that tend to grab, consider pilot drilling or using proper clamping to prevent workpiece movement. Replace bits showing signs of wear or chipping to maintain hole quality and reduce risk of breakage.