Drill bit Art-Pol 12.5 x 205 mm — metal, extended white coating

Art-Pol 12.5 x 205 mm metal drill bit is a long-format twist bit engineered for drilling through metal. With a 12.5 mm cutting diameter and an overall length of 205 mm, this bit provides extended reach for deeper holes while maintaining compatibility with standard hand drills and drill presses. The white protective coating reduces friction and offers basic surface protection during storage and handling, making it suitable for fabrication, maintenance and repair tasks that require a longer working length.

Advantages

The extended 205 mm length enables drilling at greater depths and in recessed areas without changing tooling. The 12.5 mm diameter delivers a consistent hole size for bolts, fasteners and clearance holes in metalwork. The white coating lowers surface friction and helps protect the flutes and body against light corrosion during transport and storage. Designed for general metal drilling, the bit provides stable cutting performance when used at recommended speeds and with proper clamping.

Suitable for

• Drilling through steel sheets and plate for assembly and repairs
• Making clearance holes for bolts and rivets in metal structures
• Recessed or deep-hole drilling where extra reach is required
• Use in hand drills and drill presses for workshop and on-site work

Key specifications

• Cutting diameter: 12.5 mm
• Total length: 205 mm
• Material type: metal cutting twist drill
• Surface finish: extended white protective coating
• Compatible shank type: cylindrical shank for standard chucks

How to use

Secure the workpiece firmly in a vise or with clamps before drilling to prevent movement. Install the drill bit into the chuck of a hand drill or drill press, ensuring it is centered and tightened. Start at low speed to establish the pilot contact, then increase to the appropriate cutting speed for the metal being drilled. Apply steady, moderate feed pressure and clear chips periodically to prevent clogging and overheating. Use cutting fluid or lubricant when drilling harder steels to extend tool life and improve hole quality.

Usage recommendations

For best results, select drill speeds and feed rates appropriate for the metal grade; use cutting fluid for stainless and hardened steels, and avoid excessive side loads. Inspect the bit for wear or damage before use and replace when cutting performance degrades to maintain hole accuracy and safety.