Drill bit Proline 22 mm x 300 mm model 92230, single piece

Proline drill bit 92230 is a single-piece metal drill bit with a 22 mm diameter and a total length of 300 mm. Intended for drilling metal and other hard materials, this bit features a straight shank and a standard spiral flute for chip removal. It is compatible with hand drills and drill presses that accept its shank size and is suitable for maintenance, metal fabrication and construction tasks that require deep, large-diameter holes. The design incorporates a specially shaped solid carbide insert for improved durability and precise centering during drilling.

Advantages

The Proline 22 mm x 300 mm model 92230 delivers concentrated cutting performance with a solid carbide insert that increases wear resistance and maintains cutting geometry under load. Its double-twist flute geometry promotes faster chip evacuation, reducing clogging when penetrating deep holes. The straight shank ensures secure clamping in standard chucks, and the single-piece construction reduces runout for more accurate holes.

Suitable for

• Drilling through metal sheets, plates and profiles
• Creating deep holes in structural components during maintenance
• Metal fabrication tasks requiring a 22 mm hole
• Construction applications where large-diameter holes are needed
• Drilling in hard materials where a carbide insert helps maintain edge life

Key specifications

• Diameter: 22 mm
• Overall length: 300 mm
• Construction: single-piece drill bit with solid carbide insert
• Shank type: straight shank for standard chucks
• Flute: double-twist spiral for chip removal
• Intended materials: metal and other hard materials, including concrete, granite and natural stone when appropriate drilling technique and equipment are used

How to use

Select a drill or drill press that accepts a 22 mm straight shank and secure the bit firmly in the chuck. Mark the drilling position and use appropriate pilot holes or center punching on metal to improve accuracy. Start drilling at low to moderate speed with steady pressure to establish the hole, then adjust speed according to material and machine recommendations. Use cutting fluid when drilling metal to reduce heat and extend tool life. When drilling deep holes, periodically withdraw the bit to clear chips and prevent clogging.

Usage recommendations

For best results, use the Proline 22 mm x 300 mm bit with a drill or press rated for large-diameter holes and match speeds to the material being drilled. Apply cutting fluid when working with metals, and ensure secure clamping of both workpiece and drill bit. When drilling stone or concrete, use appropriate equipment and safety measures; the carbide insert increases durability but does not eliminate the need for proper tooling and technique.