Drill bit Proline 73312, metal drill bit Ø12 mm, length 300 mm, 1 pc

Proline 73312 is a single metal drill bit with a 12 mm diameter and a 300 mm overall length, intended for drilling deeper holes in metalwork and related maintenance or fabrication tasks. The drill bit is a one-piece design suited for use with compatible handheld and bench drills where extended reach and straight drilling are required. It is supplied in a protective plastic case to keep the tool secure during storage and transport.

Advantages

The drill bit features a sturdy construction that supports sustained use in workshop and on-site environments. Its geometry is optimized for cutting through metal, providing consistent hole quality and reliable penetration. The long length reduces the need for repositioning when drilling deeper holes and the included plastic case protects the cutting edge and simplifies handling.

Suitable for

• Drilling metal plates, profiles and tubing
• Maintenance and repair work requiring deeper holes
• Fabrication and assembly tasks in workshops
• Construction site drilling when longer reach is necessary

Key specifications

• Diameter: 12 mm
• Overall length: 300 mm
• Material compatibility: metal
• Design: single-piece drill bit
• Packaging: supplied in a plastic protective case

How to use

Secure the drill bit in the drill chuck and tighten according to the drill manufacturer's instructions. Select an appropriate rotational speed and feed pressure for the specific metal being drilled; use slower speeds for harder metals and steady, moderate feed to avoid overheating. Apply cutting lubricant where recommended to extend tool life and improve cutting performance. Drill with steady pressure until the required hole depth is reached, then withdraw the bit periodically to clear chips when drilling deep holes.

Usage recommendations

For best results when drilling metal, use suitable cutting fluid, maintain correct drill speed and pressure, and ensure the workpiece is firmly clamped. Inspect the cutting edge before use and store the drill bit in its plastic case to prevent damage.