Drill bit Proline 72272, metal/steel, Ø22 mm, length 720 mm, 1 pc

Proline 72272 is a long metal/steel drill bit with a 22 mm diameter and a total length of 720 mm, supplied as a single piece. Designed for deep drilling tasks in metalworking, this drill bit provides extended reach for installations, fabrication and maintenance work where standard-length bits are insufficient. The product is intended for use with compatible drills capable of handling long-shank bits and metal drilling applications.

Advantages

The Proline 72272 drill bit offers extended reach and a consistent 22 mm cutting diameter over its 720 mm length, enabling access to deep or recessed metal workpieces. Constructed for metal and steel drilling, it delivers a stable drilling profile for through-holes and deep blind holes. The design supports efficient chip evacuation during deep drilling to help maintain cutting performance and reduce heat buildup when used with appropriate speeds and lubrication.

Suitable for

• Deep drilling in metal and steel workpieces
• Installation tasks requiring extended-reach holes
• Fabrication and maintenance operations on machinery and structures
• Drilling recessed or hard-to-reach fastening points

Key specifications

• Material application: metal / steel
• Diameter: 22 mm
• Overall length: 720 mm
• Quantity: 1 piece
• Shank type: long shank suitable for compatible drills (verify drill chuck capacity)

How to use

Secure the Proline 72272 drill bit in a drill or drilling machine that accepts the shank size and provides stable support for long bits. Mark and center the drilling point, use a pilot hole if required, and start drilling at a controlled speed appropriate for metal/steel. Apply steady feed pressure without forcing the bit, and use cutting fluid or lubricant to reduce friction and heat during prolonged drilling. Periodically withdraw the bit to clear chips and assess progress, especially when creating deep holes.

Usage recommendations

Prioritize machine stability and correct chuck capacity when using long drill bits. Use appropriate cutting speeds and lubrication for metal to extend tool life and achieve cleaner holes. For blind deep holes, withdraw regularly to remove chips and prevent clogging; for through-holes, ensure clear exit support and consistent feed. Inspect the bit for wear before each use and replace when cutting performance decreases.