Špirálový vrták Bosch kovový vrták HSS-G DIN 338 5 mm

The Bosch Metal HSS-G DIN 338 twist drill bit, 5 mm, is designed for precise drilling in a wide range of metals and hard plastics. Made from high-speed steel and precision-ground, this 5 mm drill bit offers increased drilling speed and reduced feed pressure compared with standard-ground HSS bits. It fits standard drill machines and is suitable for professional metalworking tasks and general workshop use.

Advantages

Precision-ground HSS-G geometry gives up to 40% faster drilling and up to 50% lower feed pressure than standard-ground HSS drills with a chisel edge. The self-centring split point eliminates the need for pre-punching or pilot drilling for holes up to 10 mm. Manufactured in Bosch quality, this 5 mm drill bit provides clean, accurate holes and consistent performance in a variety of materials.

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 HSS-G DIN 338
• Diameter: 5 mm
• Material: HSS (high-speed steel), precision-ground
• Tip: Self-centring split point
• MPN: 2 608 585 922
• EAN: 3165140521574

How to use

Clamp the 5 mm Bosch HSS-G twist drill bit securely in the drill chuck. Choose an appropriate speed for the material being drilled (lower speeds for hard or stainless materials, higher speeds for softer metals). Apply steady, even feed pressure; the split point tip improves centring and reduces the need for pilot holes up to 10 mm. Use cutting fluid when drilling steel or other ferrous materials to extend tool life and improve hole quality.

Recommendations

For best results, match drill speed and feed to the work material and use suitable coolant for ferrous metals. Store the drill bit in a dry place and avoid excessive radial forces to maintain tip geometry and drilling performance.