Kierukkapora Bosch HSS 7 mm

Twist drill bit Bosch HSS 7 mm is a precision-ground HSS drill designed for robust drilling in metal and suitable for general-purpose work in wood and other materials. The 7 mm diameter drill features an oxide-coated flute for reduced wear and a 1/4-inch hex shank that provides secure clamping in impact drivers and standard drills. Manufactured to DIN 338 with diameter tolerance h8 and a 135° split-point tip, the bit offers active cutting and reliable centring.

Advantages

The Bosch HSS 7 mm twist drill bit is made from solid high-speed steel for long life and consistent performance. Its oxide-coated flute lowers friction and wear when drilling, while the 135° split-point tip ensures quick penetration and accurate centring without the need for pre‑punching. The 1/4-inch hex shank reduces slippage in the chuck or impact driver and allows rapid bit changes.

Suitable for

• Drilling holes in metal (thin to medium thickness)
• General drilling in wood and composite materials
• Use with impact drivers and cordless drills

Key specifications

• Brand: Bosch
• Model / MPN: 2608577060
• Diameter: 7 mm
• Shank: 1/4-inch hex
• Material: High-speed steel (HSS)
• Tip: 135° split-point
• Standard: DIN 338, Type N (flute angle)
• Diameter tolerance: h8
• Finish: Oxide-coated flute
• Packaging: Blister, single piece
• EAN: 3165140858885

How to use

Mark the drilling position and secure the workpiece. Fit the 1/4-inch hex shank into the drill or impact driver chuck until it locks. Start drilling at low speed to establish the centre, then increase speed appropriate to the material. Apply steady pressure and avoid overheating; withdraw the bit periodically to clear chips when drilling deeper holes. After use, store the bit in its blister packaging to protect the cutting edges.

Recommendations

For best results when drilling metal, use cutting fluid or lubricant to reduce heat and wear. Select appropriate drill speed for the material: lower speed for metals and higher speed for wood. Replace the bit if the cutting edges become worn or if accuracy decreases.