Drill bit Proline 73037, metal, Ø 30 mm, length 370 mm, 1 pc

Proline 73037 is a single metalworking drill bit with a 30 mm cutting diameter and a total length of 370 mm. Designed for drilling metal in workshop and industrial environments, this bit is intended for creating large-diameter or relatively deep holes using standard drill chucks and compatible holders. The construction combines a multi-flute design with geometry optimised for chip evacuation and stable drilling.

Advantages

The Proline drill bit offers a 30 mm cutting diameter and extended 370 mm length to reach deeper bore depths than typical bits. Its multi-flute geometry improves chip removal and reduces clogging during prolonged drilling in metal. The bit is supplied as a single piece for straightforward replacement and fits common drill chucks used in professional and industrial settings.

Suitable for

• Drilling through steel sheets, plates and structural metal components
• Creating large-diameter holes for bolt and pipe passages
• Workshop and industrial machine use with appropriate chuck capacity
• Applications requiring deeper holes than standard short bits can reach

Key specifications

• Cutting diameter: 30 mm
• Total length: 370 mm
• Material application: metalworking
• Design: multi-flute / optimised geometry for chip evacuation
• Package quantity: 1 piece
• Compatibility: fits standard drill chucks and holders suitable for its diameter and shank

How to use

Mount the drill bit securely in a chuck or holder rated to accept its diameter and shank type. Use appropriate cutting speeds and feed rates for the metal being drilled and apply cutting fluid or coolant to reduce heat and extend tool life. Begin drilling with light pressure to establish the hole, then progress with steady, controlled feed while clearing chips as needed. After completion, retract the bit slowly to avoid jamming in the hole.

Usage recommendations

For best performance, select drill speeds and cutting fluids suited to the specific metal (e.g., lower speeds and high-quality coolant for hardened steel). Ensure the drilling machine and chuck provide sufficient rigidity and torque for a 30 mm diameter bit and inspect the bit for wear or damage before use.