Twist metal drill bit Bosch HSS-G DIN 338, 3.5 mm, 2 pcs

Bosch HSS-G DIN 338 twist metal drill bits, diameter 3.5 mm, pack of 2. Manufactured from ground high-speed steel (HSS-G) for general metalworking, these drill bits are suitable for use in handheld and stationary drills for fabrication, maintenance and repair. The precision-ground geometry and split-point tip deliver reliable centring and improved drilling performance in a range of metals and hard plastics.

Advantages

The precision-ground HSS-G flute provides up to 40% faster drilling and up to 50% lower feed pressure compared with standard chisel-edge HSS bits. The self-centring split point eliminates the need for pre-punching or pilot drilling for holes up to 10 mm in diameter. These bits are available in two quality grades: Topline for highest requirements and the standard professional grade for everyday use.

Suitable for

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

Key specifications

• Type: Twist metal drill bit, HSS-G (ground high-speed steel)
• Standard: DIN 338
• Diameter: 3.5 mm
• Pack quantity: 2 pieces
• Manufacturer: Bosch
• MPN: 2608585914
• EAN: 3165140521499

How to use

Secure the workpiece and select an appropriate drill speed for 3.5 mm HSS bits and the material being drilled. Clamp the drill bit in the drill chuck with correct alignment. Start drilling with steady feed pressure; the split-point tip will self-centre and reduce walking. Use cutting lubricant when drilling steels to prolong bit life and evacuate chips frequently to avoid clogging.

Usage recommendations

For best results, choose the Topline grade when working under highest precision or endurance demands; use the standard professional grade for general maintenance and fabrication. Store bits in a dry place and inspect for wear or damage before use.