Drill Bit AWTools HSS straight shank 2.5 mm for metal, set of 10 (AW41025)

AWTools HSS straight shank drill bits, 2.5 mm diameter, set of 10 are designed for drilling holes in metal. Made from high-speed steel (HSS) without carbide tips, this set is suitable for a range of ferrous and non-ferrous materials. The cylindrical (straight) shank fits common chucks in hand drills and drill presses, providing consistent centering and stable rotation for routine metalworking, maintenance and repair tasks.

Advantages

The high-speed steel construction offers good wear resistance and a balance between toughness and hardness for general-purpose metal drilling. A straight shank ensures compatibility with most standard drill chucks and reduces the need for special adapters. Supplied as a set of ten identical 2.5 mm bits, the pack provides replacements and spares for repetitive jobs and maintenance operations. The bits are uniform in diameter for predictable hole sizes and easier tool planning.

Suitable for

• Drilling holes in thin to medium-thickness steel sheets
• Work on non-ferrous metals such as aluminum and brass
• General maintenance and repair tasks with hand drills and drill presses
• Hobbyist metalworking and light fabrication

Key specifications

• Material: High-speed steel (HSS), non-carbide
• Shank type: Straight (cylindrical) shank for standard chucks
• Diameter: 2.5 mm
• Set quantity: 10 identical drill bits
• Application: Designed for drilling metal (ferrous and non-ferrous)

How to use

Select the 2.5 mm AWTools HSS bit and secure it in the drill chuck, ensuring the shank sits fully and the bit is centered. For metal drilling, clamp the workpiece securely and mark the drilling point. Use moderate to high spindle speed appropriate for HSS in metal, apply steady pressure, and allow the bit to clear chips periodically. Apply cutting fluid or lubricant when drilling tougher steels to reduce heat and prolong bit life. After use, clean chips from the flutes and store the bits dry to prevent corrosion.

Usage recommendations

For best results, match drill speed and feed to the material: higher speeds for softer non-ferrous metals, lower speeds with lubricant for harder steels. Replace worn bits to maintain hole accuracy and reduce risk of workpiece damage.