Drill bit Proline 73272 — 32 mm diameter, 720 mm length, single piece

Proline 73272 is a single-piece metal drill bit with a 32 mm cutting diameter and an overall length of 720 mm. Designed for drilling metal, this Proline drill bit suits tasks that require deep or through holes in metalwork, pipes or structural elements. The bit is intended for use with compatible drill machines and requires appropriate speeds and cooling to maintain durable performance.

Advantages

The Proline 73272 offers a large 32 mm diameter and extended 720 mm length in a single-piece design, enabling deep penetration and clean through-holes in metal materials. Its construction is focused on stability and straight drilling over long depths. The bit’s geometry supports effective chip evacuation when used with suitable speeds and cooling, which helps preserve cutting edges and prolong service life.

Suitable for

• Drilling deep or through holes in metal plates and structural steel
• Creating openings in metal pipes and tubular sections
• Workshop and on-site metal fabrication tasks requiring long-reach drilling

Key specifications

• Cutting diameter: 32 mm
• Overall length: 720 mm
• Configuration: single-piece metal drill bit
• Intended material: metal (suitable for steel and similar alloys when used with correct parameters)

How to use

Secure the Proline 73272 in a compatible drill chuck or holder rated for long-length bits. Mark and center the drilling position, then start at low speed to establish the pilot and maintain steady axial pressure. Use appropriate cutting speeds and feed rates for the metal being drilled and apply intermittent or continuous cooling/lubrication to reduce heat build-up. Clear chips regularly during long holes to prevent clogging and overheating. After drilling, inspect the hole and cutting edge for wear; regrind or replace the bit if performance declines.

Usage recommendations

Use machines and chucks capable of handling long-reach bits, observe proper safety practices, and select drilling speeds, feeds and coolant compatible with the workpiece material to achieve best results and longer tool life.