Drill bit Proline 72240, HSS metal, Ø22 mm, length 400 mm, 1 pc

Proline 72240 is a single high-speed steel (HSS) drill bit for metalworking with a 22 mm diameter and a total length of 400 mm. Supplied as one piece, this drill bit is intended for drilling in steel and other ferrous materials in workshops, maintenance tasks and construction environments. The extended length allows deeper hole making and compatibility with pillar drills or extension holders when required.

Advantages

The HSS material provides hardness and heat resistance suitable for cutting through metal at varying speeds. A longer overall length offers access to recessed or deep drilling points without multiple extensions. Supplied as an individual piece, the drill bit can be selected as a replacement or for single-tool tasks. The geometry and fluting are designed to facilitate chip evacuation when used in typical metalworking conditions.

Suitable for

• Drilling holes in steel and other ferrous metals
• Deep hole drilling with pillar drills or extension holders
• Workshop maintenance and on-site metal fabrication
• Replacement or single-use applications in professional toolkits

Key specifications

• Material: high-speed steel (HSS)
• Diameter: 22 mm
• Total length: 400 mm
• Quantity: 1 piece
• Intended material: steel and other ferrous metals

How to use

Secure the drill bit properly in a compatible chuck or holder and ensure the tool is rated for the bit diameter and length. Use appropriate cutting speeds, feed rates and cutting fluid for metalworking to reduce heat and prolong tool life. When drilling deep holes, periodically withdraw the bit to clear chips and prevent clogging. Follow the drill machine manufacturer's safety and operational instructions during use.

Usage recommendations

For best results when drilling steel, use steady feed, moderate speed and a suitable metal cutting lubricant. When using with pillar drills or extensions, verify concentricity and secure clamping to minimise run-out and reduce wear.