Drill bit Proline 72480 — 24 mm diameter, 800 mm length, 1 pc

Proline 72480 is a single-piece metal drill bit with a 24 mm diameter and an 800 mm overall length, intended for long-reach drilling tasks in metal and similar materials. The bit is designed for use in handheld and stationary drills that accept its shank size and provides a combination of reach and large-diameter performance suitable for construction, metalworking and maintenance applications.

Advantages

The drill bit features a double-twist design for efficient chip evacuation and reduced binding during drilling. A 4-blade insert with optimised geometry improves cutting stability and helps maintain a consistent bore diameter. Its extended 800 mm length enables deep or hard-to-reach holes without the need for extensions, while the single-piece construction ensures mechanical rigidity during use.

Suitable for

• Drilling large-diameter holes in metal sheets, pipes and structural components
• Long-reach drilling where standard-length bits are insufficient
• Maintenance and repair tasks on machinery and installations
• Use with handheld and bench drills that accommodate the shank and chuck size

Key specifications

• Diameter: 24 mm
• Overall length: 800 mm
• Pack quantity: 1 piece
• Designed material: metal and similar materials
• Tip/geometry: 4-blade insert with optimised geometry
• Flute design: double twist for improved chip removal

How to use

Secure the drill bit in a compatible chuck with appropriate clamping force for safe operation. Use steady, moderate feed pressure and an appropriate rotational speed for the workpiece material to avoid overheating and premature wear. For deep holes or through-drilling, periodically withdraw the bit to clear chips and allow cooling. Ensure proper personal protective equipment and firm workpiece clamping before starting.

Usage recommendations

Choose cutting speeds and lubrication appropriate for the metal being drilled; using cutting fluid can extend tool life and improve hole quality. Inspect the drill bit regularly for wear or damage, and replace when edge rounding or chipping reduces performance.