Drill bit GRAPHITE HSS cylindrical 6 mm for metal (55H025)

GRAPHITE HSS cylindrical drill bit 6 mm is engineered for drilling metal and metal alloys. Made from high-speed steel (HSS), this drill bit provides improved wear resistance and retains hardness at elevated cutting temperatures typical of metalworking. The cylindrical shank fits standard chucks, allowing use with bench and hand-held drills to produce accurate, clean holes in steel, iron and non-hardened metal sheets.

Advantages

The HSS material ensures good durability and thermal stability during continuous drilling in metal. The 6 mm diameter delivers a reliable hole size for common fastening and assembly tasks. A cylindrical shank offers simple, secure clamping in standard drill chucks, while the precision-ground cutting edges promote accurate hole positioning and reduced burr formation. The tool is suitable for both workshop environments and industrial production where consistent performance is required.

Suitable for

• Drilling through steel and iron sheets
• Creating holes for bolts, rivets or threaded inserts
• General metal fabrication and maintenance work
• Use with bench drills and hand-held drills for repair tasks

Key specifications

• Material: high-speed steel (HSS)
• Shank type: cylindrical (straight) shank
• Diameter: 6 mm
• Intended material: steel, iron and non-hardened metal sheets
• Typical applications: metal drilling, fabrication, maintenance

How to use

Select an appropriate drill speed and cutting fluid for the metal being worked to reduce heat and extend tool life. Secure the workpiece firmly and clamp the drill bit in a compatible chuck, ensuring concentric alignment. Start drilling at low speed to establish the hole, then increase speed as appropriate for the material and bit condition, applying steady moderate pressure. Withdraw the bit periodically to clear chips and avoid clogging. After use, clean off chips and apply light oil to prevent corrosion.

Usage recommendations

For best results when drilling steel and iron, use cutting fluid and moderate feed pressure; avoid excessive speed to prevent premature wear. For through-holes in thicker material, pre-drill a pilot hole if alignment or bit wandering is a concern. Store the drill bit dry and protected to maintain cutting performance.