Drill bit Proline 72026, metal, Ø 20 mm, length 260 mm, 1 pc

The Proline 72026 metal drill bit is a single 20 mm diameter, 260 mm overall length drill designed for drilling metal workpieces. Intended for use in both handheld and machine drills, this Proline bit is suitable where a large through-hole is required in steel and similar metals. The product is presented as one piece and targets industrial, professional and workshop applications that need precise 20 mm holes.

Advantages

This drill bit features a design aimed at efficient metal cutting and bore removal. Its double-twist geometry helps the bit clear swarf and maintain cutting progress, while a 4-blade insert with optimised geometry supports stable drilling and better centring. The 260 mm overall length provides reach for through-holes and thicker sections, and the 20 mm diameter offers a consistent large hole size for fittings, fasteners or passages.

Suitable for

• Drilling 20 mm through-holes in steel and similar metals
• Metal fabrication and assembly tasks
• Construction and maintenance work requiring large metal holes
• Machine-shop operations and handheld drill applications

Key specifications

• Diameter: 20 mm
• Overall length: 260 mm
• Material application: metal workpieces (steel and similar materials)
• Geometry: double-twist design with 4-blade insert and optimised cutting geometry
• Sold as: single piece

How to use

Use the Proline 72026 in a suitable handheld or machine drill with appropriate chuck capacity for a 20 mm shank or adapter. Secure the workpiece, mark the drilling position and use steady feed pressure to allow the double-twist geometry and 4-blade insert to cut and evacuate chips effectively. Use cutting fluid or coolant when drilling steel to reduce heat and extend tool life. Maintain consistent speed appropriate for the metal type and thickness being drilled.

Usage recommendations

For best results, clamp the workpiece firmly, start at low speed to establish the hole, and increase speed as chip evacuation becomes steady; apply cutting fluid when drilling harder steels and inspect the bit periodically for wear to ensure consistent hole quality.