Drill bit set AWTools AW41090 — pack of 5 pieces

AWTools AW41090 drill bit set — pack of 5 pieces. This set contains precision-ground, double-sided HSS-G (high-speed steel) twist drill bits supplied in a compact case. The bits feature a 118° point angle for improved centering and stable starts. They are designed for general-purpose drilling of alloyed and unalloyed steel, grey cast iron, non-ferrous metals and various plastics and are suitable for use with compatible handheld and bench drills.

Advantages

The drill bits are made of HSS-G high-speed steel and precision ground for consistent cutting performance and longer edge life compared with standard untreated bits. The double-sided grinding provides balanced geometry for smoother drilling and reduced walking on the workpiece. A 118° point angle improves centering on a variety of materials without the need for excessive pilot drilling. The five-piece pack ensures quick replacements and availability for multiple tasks, while the included case keeps the bits organized and protected.

Suitable for

• Drilling alloyed and unalloyed steel
• Working with grey cast iron
• Drilling non-ferrous metals such as aluminium and brass
• Cutting holes in plastic components
• Workshop, construction and DIY general-purpose drilling

Key specifications

• Material: HSS-G high-speed steel
• Geometry: precision ground, double-sided
• Point angle: 118° for improved centering
• Pack quantity: 5 drill bits
• Supplied in a protective case
• Applicable materials: alloyed/unalloyed steel, grey cast iron, non-ferrous metals, plastics

How to use

Select a drill bit of the correct diameter for the required hole and secure it in a compatible drill chuck. Use appropriate cutting speed and feed for the material being drilled: lower speeds for harder steels and higher speeds for non-ferrous metals and plastics. Apply steady pressure and let the bit cut; withdraw periodically to clear chips and reduce heat buildup. Use cutting fluid or lubricant when drilling steels or alloyed metals to extend bit life and improve surface finish. Store the bits in their case after cooling and cleaning.

Usage recommendations

For best results, pre-drill pilot holes when accuracy is critical, clamp the workpiece securely to prevent movement, and use suitable RPM and cutting lubricant for metal drilling. Replace worn bits to maintain hole quality and reduce the risk of breakage.