Drill bit Proline 92080 — 20 mm diameter, 800 mm length, 1 pc

Proline 92080 is a single long drill bit with a 20 mm diameter and an overall length of 800 mm, intended for drilling metal and compatible materials where extended reach is required. Supplied as one piece, this drill bit is designed for use in compatible chucks and holders to perform deep-hole drilling, conduit or pipe entry and other applications that need a long-reach cutting tool.

Advantages

The drill bit features a specially shaped solid carbide insert that improves durability and maintains cutting performance under heavy use. A design focused on accurate centered drilling reduces wobble and improves hole precision, while a geometry that lowers load helps prolong tool life and reduces stress on the drill motor. Double twist flutes provide efficient chip evacuation and faster bore clearing during operation.

Suitable for

• Deep-hole drilling in metal and compatible materials
• Creating entry holes for conduits and pipes
• Tasks requiring extended reach where standard-length bits are insufficient
• Professional and industrial drilling setups with compatible chucks or holders

Key specifications

• Diameter: 20 mm
• Overall length: 800 mm
• Quantity: 1 piece
• Tip/insert: solid carbide insert for improved wear resistance
• Flute type: double twist for rapid chip removal
• Primary use: drilling metal and compatible materials; also suitable for concrete, granite and other natural stones per manufacturer guidance

How to use

Install the Proline 92080 securely in a compatible drill chuck or holder rated for long-reach bits. Begin drilling at low speed to establish a centered pilot, then increase speed and feed steadily while maintaining firm, controlled pressure. Use appropriate coolant or cutting fluid when drilling metal to reduce heat buildup and prolong insert life. Monitor chip evacuation and pause to clear chips if necessary to prevent clogging of the flutes during deep-hole operations.

Usage recommendations

For best results, select a drill and holder combination designed for long, heavy-duty bits, use adequate clamping of the workpiece, apply cutting fluid for metal operations, and ensure proper coolant flow when drilling stone or concrete. Match drilling speed and feed to the material being worked to optimize hole quality and tool life.