Drill bit Proline 72880 — solid metal, Ø 28 mm, length 800 mm, 1 pc

Proline 72880 is a single solid metal drill bit with a 28 mm diameter and an overall length of 800 mm. Designed for long-reach drilling, this 1-piece bit is intended for professional and industrial use with compatible drill chucks and rigs. It is suitable for drilling straight, deep holes in metal and similar materials where a robust, single-piece construction and extended length are required.

Advantages

The solid metal construction provides stability and resistance to bending during deep drilling operations. With a 28 mm cutting diameter and 800 mm length, the bit enables access to recessed or hard-to-reach workpieces without the need for extensions. The double-twist design helps efficient chip removal, while the four-blade insert with optimised geometry improves bore quality and cutting performance in demanding applications.

Suitable for

• Drilling deep straight holes in metal workpieces
• Industrial and workshop applications requiring long-reach drilling
• Use with compatible drill chucks and long-reach drilling rigs

Key specifications

• Type: solid metal drill bit, single piece
• Diameter: 28 mm
• Overall length: 800 mm
• Design features: double-twist flute geometry for chip evacuation
• Tip/insert: 4-blade insert with optimised geometry for improved cutting
• Intended materials: metal and compatible hard materials

How to use

Secure the Proline 72880 drill bit in a compatible chuck or drilling rig rated for long-reach bits and for the 28 mm diameter. Set appropriate spindle speed and feed rates for the specific metal being drilled, and apply steady pressure while allowing the double-twist flutes to evacuate chips. Use coolant or cutting fluid as required for the material and cutting conditions to reduce heat and extend tool life. Inspect the bit before use for any signs of damage and ensure proper alignment to maintain a straight hole.

Usage recommendations

For best results, match drill speed and feed to the workpiece material, use appropriate clamping and steady support for long-reach operations, and employ coolant when drilling metals to minimise wear and maintain hole quality.