Drill bit GEKO HSS cobalt for metal 6.5 mm G37065

GEKO HSS cobalt drill bit 6.5 mm is a precision metalworking bit designed for reliable drilling in steel, stainless steel and other hard metals. Constructed from high-speed steel with a cobalt alloy, this drill bit offers improved heat resistance and extended cutting life compared with standard HSS bits. The 6.5 mm diameter suits through-holes and pilot holes where a durable, consistent cutting edge is required for repeated use on demanding materials.

Advantages

The cobalt-enriched high-speed steel composition increases hardness and maintains cutting performance at higher temperatures, reducing wear during continuous drilling. The geometry of the flutes and point provides efficient chip evacuation and stable cutting action, which helps to minimize clogging and improves hole quality. The bit is compatible with common hand drills and drill presses, offering versatility across workshop and site environments.

Suitable for

• Drilling holes in mild and hardened steel
• Working with stainless steel and other corrosion-resistant alloys
• Use in hand-held electric drills and drill presses
• Fabrication, maintenance and repair tasks requiring durable drill performance

Key specifications

• Material: high-speed steel with cobalt alloy
• Diameter: 6.5 mm
• Intended materials: steel, stainless steel and other hard metals
• Tip and flute design: optimized for chip evacuation and stable cutting
• Typical applications: metal drilling for fabrication and maintenance

How to use

Secure the drill bit firmly in the chuck of the hand drill or drill press and set an appropriate rotational speed for metalworking (moderate to low speeds for harder alloys). Mark the drilling point and, if necessary, use a center punch to prevent walking. Apply steady pressure and allow the bit to cut without forcing; withdraw periodically to clear chips and reduce heat buildup. Use cutting fluid or coolant when drilling stainless steel or other heat-prone metals to extend tool life and improve hole finish.

Usage recommendations

For best results, match drilling speed and feed to the specific metal being worked and use appropriate lubricant for stainless or hardened steels. Inspect the bit regularly for wear and replace when the tip becomes blunt or damaged to maintain hole accuracy and safe operation.