Drill bit GEKO cobalt HSS for metal 9 mm (model G37090)

GEKO cobalt HSS drill bit 9 mm (model G37090) is designed for drilling holes in metals, including stainless steel and other ferrous materials. Manufactured from high-speed steel with a cobalt alloy, this 9 mm drill bit offers increased hardness and improved heat resistance compared with standard HSS bits. It is suitable for use in hand-held drills and drill presses for metalworking, maintenance, and fabrication tasks where a precise 9 mm hole is required.

Advantages

The cobalt alloyed HSS construction provides enhanced wear resistance and longer tool life during intensive metal drilling. The bit maintains cutting performance at higher temperatures, reducing the risk of premature softening and improving hole quality in stainless steel and tough alloys. Its 9 mm diameter ensures consistent, accurate hole size for assembly and repair operations.

Suitable for

• Drilling stainless steel and other ferrous metals
• Metal fabrication and maintenance work
• Use with hand drills and drill presses
• Creating precise 9 mm holes for fastening and assembly

Key specifications

• Diameter: 9 mm
• Material: high-speed steel with cobalt alloy
• Intended use: metal drilling including stainless steel and ferrous materials
• Compatible with: hand drills and drill presses

How to use

Select the 9 mm GEKO cobalt HSS drill bit and secure it in the drill chuck, ensuring proper centering and tight clamping. Mark and, if necessary, center-punch the drilling point on the workpiece. Use an appropriate cutting speed and moderate feed rate for metal; begin with a slow speed when drilling stainless steel or hardened materials. Apply cutting fluid or coolant to reduce heat buildup and improve chip evacuation. Clear chips regularly and allow the bit to cool during extended drilling to preserve hardness and prolong tool life.

Usage recommendations

For best results when drilling stainless steel and other hard metals, use a low to medium cutting speed, steady feed, and appropriate cutting fluid. Avoid excessive pressure that can cause bit deflection or overheating; intermittently withdraw the bit to clear chips and prevent clogging. Inspect the bit for wear and replace it when cutting edges become dull to maintain hole accuracy and surface finish.