Drill bit Proline 71245 — 12 mm diameter, 450 mm length, 1 pc

Single Proline 71245 metal drill bit with 12 mm cutting diameter and 450 mm overall length. The bit features a straight shank and is supplied as one piece for use with compatible drill machines. It is intended for drilling metal and similar hard materials, enabling through-holes and deep drilling tasks in workshop, industrial or maintenance environments.

Advantages

The Proline 71245 drill bit offers a long 450 mm length that allows reaching deeper holes without the need for extensions. Its 12 mm cutting diameter provides a balance between hole size and material removal rate appropriate for many metalworking tasks. The straight shank ensures compatibility with most standard drill chucks, while the single-piece supply makes replacement and inventory straightforward.

Suitable for

• Drilling through-holes in metal sheets and bars
• Deep hole drilling in industrial maintenance and repair
• Workshop metalworking and fabrication tasks
• Use with compatible corded or cordless drill machines equipped with a straight shank chuck

Key specifications

• Cutting diameter: 12 mm
• Overall length: 450 mm
• Shank type: straight shank
• Quantity: 1 piece
• Material compatibility: metal and similar hard materials

How to use

Secure the drill bit in the drill chuck so that the shank is gripped firmly and runout is minimised. Select an appropriate drill speed and cutting fluid for the metal being drilled; lower speeds and adequate lubrication are recommended for harder metals. Apply steady feed pressure, allowing the bit to cut without excessive force, and periodically withdraw the bit to clear chips when drilling deep holes. After use, clean chips from the flutes and store the bit in a dry place.

Usage recommendations

For best results when drilling metal, use cutting fluid or coolant, choose a drill speed suited to the material hardness, and ensure the workpiece is securely clamped. Inspect the bit before use for wear or damage and replace it when cutting performance deteriorates.