Drill bit GEKO HSS 8.5 mm – metal drilling, model G39085, pack options

GEKO HSS 8.5 mm drill bit (model G39085) is a high-speed steel cutting tool designed for drilling holes in ferrous and non-ferrous metals. The 8.5 mm diameter and HSS material provide a balance of hardness and toughness for repeated metal drilling operations. This drill bit is suitable for use with hand-held drills and drill presses and is offered in multiple pack options to match the needs of professional workshops and hobbyists engaged in metal fabrication and maintenance.

Advantages

The HSS construction ensures good heat resistance and edge retention during metal drilling, while the 8.5 mm diameter delivers a standardized hole size for common fastening and assembly tasks. Compatible with various drilling setups, the bit supports steady chip evacuation and consistent cutting performance when used with appropriate speeds and cutting fluids. Multiple pack options allow economical purchase for frequent use or project-based needs.

Suitable for

• Drilling holes in steel, aluminum and other metals
• Workshop fabrication and assembly
• Maintenance, repair and retrofit tasks
• Use with hand drills and bench or radial drill presses

Key specifications

• Material: high-speed steel (HSS)
• Diameter: 8.5 mm
• Tip style: standard twist drill point for metal
• Intended application: metal cutting (ferrous and non-ferrous)
• Compatibility: suitable for hand-held drills and drill presses
• Pack options: available in single and multi-pack quantities

How to use

Select an appropriate drilling speed and clamp the workpiece securely before starting. Mark the drilling point and, if necessary, use a center punch to prevent wandering. Fit the 8.5 mm HSS bit into the drill chuck with correct alignment and tighten firmly. Use steady pressure and do not force the bit; allow the bit to cut at its own pace. For improved tool life and hole quality when drilling thicker or harder metals, apply a suitable cutting fluid and withdraw the bit periodically to clear chips.

Usage recommendations

For best results, use recommended drill speeds for HSS bits and apply cutting lubricant when drilling harder steels. Inspect the drill bit before use for signs of wear or damage and replace when edge dulling affects performance. Store bits in a dry, organized container to prevent corrosion and protect the cutting edges.