Twist drill bit Bosch Metal drill bit HSS-G DIN 338

The Bosch Metal drill bit HSS-G DIN 338 is a 3 mm high-speed steel (HSS-G) twist drill designed for precision drilling in a wide range of metals and hard plastics. Supplied as a 2-piece set, this drill bit is suitable for professional and DIY applications where reliable performance and durability are required.

Advantages

The precision-ground HSS-G geometry provides up to 40% faster drilling and up to 50% lower feed pressure compared with standard-ground HSS bits with a chisel edge. The self-centring split point eliminates the need for pre-punching or pilot drilling for holes up to 10 mm in diameter. Available in Topline and standard qualities to match highest demands or professional everyday use.

Suitable for

• Alloyed and non-alloyed steel (up to 900 N/mm² tensile strength)
• Cast steel and cast iron
• Sintered iron and malleable cast iron
• Non-ferrous metals (e.g., aluminium, copper)
• Hard plastics

Key specifications

• Brand: Bosch
• Model: Metal drill bit HSS-G DIN 338
• Diameter: 3 mm
• Material: High-speed steel (HSS-G)
• Package quantity: 2 pieces
• MPN: 2 608 585 911
• EAN: 3165140521468

How to use

Secure the workpiece and select an appropriate drill speed for the material. Clamp the 3 mm HSS-G twist drill in the drill chuck ensuring concentricity. For holes up to 10 mm, the self-centring split point allows direct drilling without pre-punching; apply steady feed and moderate pressure following the drill’s cutting action. Use cutting fluid when drilling tougher steels or for longer continuous drilling to extend tool life.

Recommendations

For best results, choose the Topline quality for high-precision or continuous professional use; use the standard quality for general professional and DIY tasks. Always wear appropriate eye and hand protection and follow machine safety instructions.