Drill bit GEKO cobalt HSS for metal 13 mm (G37130)

GEKO cobalt HSS drill bit 13 mm is designed specifically for drilling metal. Made from high-speed steel with a cobalt alloy, it offers increased heat resistance and edge retention when working with hard steels and stainless materials. The 13 mm diameter and standard shank make it compatible with corded and cordless hand drills as well as drill presses used in metal fabrication, maintenance and professional workshops.

Advantages

The cobalt HSS composition improves cutting performance and extends tool life compared with standard high-speed steel bits when drilling hardened or stainless metals. The 13 mm size provides a balance between hole strength and material removal rate, while the precision-ground flutes ensure efficient chip evacuation and reduced clogging. Its straight shank fits common chucks and enables stable drill runout for accurate hole placement.

Suitable for

• Drilling holes in mild and stainless steels
• Metal fabrication and sheet metal work
• Workshop maintenance and repair tasks
• Use with hand drills and drill presses

Key specifications

• Material: high-speed steel with cobalt alloy
• Diameter: 13 mm
• Tip/point: precision-ground for metal drilling
• Flute type: spiral flutes for chip evacuation
• Shank: straight, suitable for standard chucks
• Recommended use: cutting through ferrous metals and stainless steel

How to use

Clamp the workpiece securely and mark the drilling location. Use a center punch for accurate hole positioning on metal surfaces. Install the 13 mm drill bit in the chuck and tighten firmly. Select a drill speed appropriate for the metal being drilled—lower speeds for hard or stainless steels—and apply steady, moderate feed pressure. Use cutting fluid or coolant to reduce heat buildup and prolong tool life. Withdraw the bit occasionally to clear chips and avoid jamming.

Usage recommendations

For best results, use cutting lubricant when drilling stainless or hardened steels, and start with a smaller pilot hole when precise hole tolerance or reduced breakout is required. Regularly inspect the bit for wear and replace when edges become dull to maintain drilling accuracy.