Drill bit Wera HSS spiral 3 mm, length 38 mm

Wera HSS spiral drill bit, 3 mm diameter and 38 mm overall length, is a precision cutting tool intended for general workshop and trade use. Made from high-speed steel (HSS) with a spiral fluting geometry, this drill bit is designed to produce accurate small-diameter holes in metal, wood and plastics. It is compatible with handheld drills and drill presses and is suitable for repair, installation and assembly tasks where repeatable hole quality is required.

Advantages

The HSS material provides a good balance of hardness and toughness, enabling longer tool life and consistent cutting performance in a range of common materials. The spiral flute design ensures efficient chip evacuation and stable drilling, reducing the risk of clogging when working with metal chips or wood fibres. Its 3 mm diameter and 38 mm overall length make it well suited to confined workspaces and fine-detail drilling while maintaining rigidity for accurate hole placement.

Suitable for (tasks / use cases)

• Drilling holes in soft and mild steel, aluminium and other non-hardened metals
• Precision drilling in timber and engineered wood products
• Cutting holes in plastics and composite panels
• General maintenance, repair and assembly work with handheld drills or drill presses
• Electronics enclosures, small brackets and fixtures requiring small-diameter holes

Key specifications

• Material: High-speed steel (HSS)
• Tip geometry: Spiral fluted design for chip removal
• Diameter: 3 mm
• Overall length: 38 mm
• Suitable for: metal, wood, plastics
• Compatibility: handheld drills and drill presses

How to use

Select an appropriate drill speed and clamp the workpiece securely before drilling. Mark the drilling point and, if needed, start with a pilot indentation to prevent walking. Fit the 3 mm Wera HSS spiral drill bit into the chuck and tighten firmly. Use moderate feed pressure and maintain steady speed suitable for the material—lower speeds for harder metals and higher speeds for softer materials and plastics. Withdraw the bit periodically on deeper holes to clear chips and avoid overheating. After use, clean the bit and store it in a protective holder to preserve cutting edges.

Usage recommendations

For metal drilling, use cutting lubricant or coolant to extend tool life and improve hole finish. For plastics, reduce speed and avoid excessive feed to prevent melting. When drilling delicate components, secure the workpiece with clamps or a vice and consider using a backing support to minimize breakout at exit holes.