Twist drill bit Bosch HSS hex-shank 3 mm

Twist drill bit Bosch HSS hex-shank 3 mm is a solid high-speed steel drill designed for precise drilling in metal and general-purpose applications. The 3 mm diameter bit has a 1/4-inch hex shank for secure fit in impact drivers and standard chucks. The flute is oxide-coated to reduce wear and extend life, and the bit is manufactured to DIN 338 with a 135° split-point tip for active cutting and accurate centring. Supplied as a single piece in a blister pack.

Advantages

The Bosch HSS hex-shank drill bit provides robust performance when used with impact drivers and drills. Precision-ground from solid HSS ensures consistent geometry and durability, while the oxide-coated flute reduces friction and wear. The 135° split-point tip improves cutting efficiency and reduces wandering at the start of drilling. The 1/4-inch hex shank enables quick bit changes and stable retention in hex chucks.

Suitable for

• Drilling small diameter holes in steel and other metals
• Use with impact drivers and cordless drills
• Workshop and DIY metalworking tasks
• Applications requiring precise centring and clean entry holes

Key specifications

• Brand: Bosch
• Model / MPN: 2608577048
• EAN: 3165140858786
• Type: HSS twist drill bit, DIN 338
• Diameter: 3 mm
• Tip angle: 135° split-point
• Shank: 1/4-inch hex shank
• Tolerance: h8
• Coating: oxide-coated flute
• Package: blister with 1 piece

How to use

Secure the Bosch HSS hex-shank 3 mm drill bit in the chuck or 1/4-inch hex holder of your drill or impact driver. Start drilling at low speed to establish the centre, then apply steady pressure and increase speed as appropriate for the metal being drilled. Use cutting fluid when drilling thicker or harder metals to reduce heat and extend tool life. Withdraw the bit periodically to clear chips and prevent clogging.

Usage recommendations

Use appropriate personal protective equipment (safety glasses, gloves) and clamp workpieces securely. For best life and performance in hardened or stainless steels, use suitable cutting lubricants and moderate feed rates. Avoid excessive side loads to prevent bit breakage.