Drill bit GEKO cobalt HSS for metal 10 mm G37100

GEKO cobalt HSS twist drill bit 10 mm (model G37100) is a precision metal-cutting tool designed for drilling steel, stainless steel and other hard metals. Manufactured from high-speed steel with added cobalt alloy, this 10 mm drill bit offers improved heat resistance and longer cutting edge life compared with standard HSS drills. Its twist-fluted geometry provides efficient chip evacuation and stable drilling performance in both hand drills and drill presses used in workshops, repair shops and construction sites.

Advantages

The cobalt alloy in the high-speed steel matrix increases hardness at elevated temperatures, reducing wear during prolonged use and allowing higher cutting speeds. The 10 mm diameter provides a widely used hole size for through-holes and pilot holes in metalworking. The twist flute design improves chip removal and reduces clogging, while the heat-treated point maintains cutting geometry for consistent drilling accuracy. The bit is compatible with standard three-jaw chucks and can be used in portable and stationary drilling machines.

Suitable for

• Drilling holes in mild and alloy steels
• Drilling stainless steel and other hard metals
• Workshop maintenance and metal fabrication
• Construction and repair tasks requiring 10 mm holes

Key specifications

• Material: high-speed steel (HSS) with cobalt alloy
• Diameter: 10 mm
• Flute type: twist flute for chip evacuation
• Suitable machines: hand drills and drill presses
• Application: drilling metals including stainless steel

How to use

Secure the drill bit in the chuck of a hand drill or drill press, ensuring it is centered and tightened correctly. Mark and clamp the workpiece to prevent movement. Use appropriate cutting speed and feed rate for the metal being drilled—start with slower speeds for stainless and hardened steels. Apply cutting fluid or coolant when drilling tougher alloys to reduce heat buildup and extend service life. Retract periodically to clear chips if drilling deep holes.

Usage recommendations

Use cutting lubricant when drilling stainless steel or other high-alloy metals, and start with a pilot hole when exact hole location and finish are important. Replace the bit when signs of excessive wear or chipping appear to maintain drilling accuracy and safety.