Drill bit for metal Smart HSS cylindrical 2.5 mm, set of 10

Set of 10 Smart HSS cylindrical drill bits for metal, each with a 2.5 mm diameter. These drill bits are made from high-speed steel (HSS), offering wear resistance and heat tolerance appropriate for drilling mild steel and non-ferrous metals. The cylindrical shank design fits standard chucks and makes the set suitable for hand drills and drill presses in workshop, repair, and DIY environments where accurate small-diameter holes in metal components are required.

Advantages

High-speed steel construction provides a balance of hardness and toughness for extended tool life when cutting metal. The uniform 2.5 mm diameter ensures repeatable hole sizes, while the cylindrical shank allows secure mounting in a wide range of chucks. Supplied as a set of 10, these bits reduce the need for frequent restocking and are convenient for projects that require multiple identical holes. The geometry is designed for effective chip evacuation in thin to moderate metal sections.

Suitable for

• Drilling precise 2.5 mm holes in mild steel
• Working with non-ferrous metals such as aluminum and brass
• General workshop tasks, maintenance and repair
• DIY metalworking projects and small fabrication tasks

Key specifications

• Material: high-speed steel (HSS)
• Diameter: 2.5 mm
• Shank type: cylindrical
• Quantity: set of 10 drill bits
• Suitable materials: mild steel and non-ferrous metals

How to use

Secure the appropriate drill bit in a compatible chuck and ensure it is straight and firmly clamped. Select a suitable drilling speed for HSS bits and the metal being drilled — lower speeds for harder steels, higher speeds for softer non-ferrous metals. Use cutting fluid or oil when drilling steel to reduce heat and extend bit life. Start with a steady feed pressure, avoid excessive side load, and withdraw the bit periodically for chip clearance when drilling deeper holes. After use, clean chips and store the bits dry to prevent corrosion.

Usage recommendations

For best results, match drilling speed and cutting fluid to the workpiece material, and replace worn bits to maintain hole accuracy. Use appropriate personal protective equipment, clamp workpieces securely, and follow machine safety guidelines.