Drill bit GRAPHITE HSS DIN 338, 10 mm

GRAPHITE HSS drill bit DIN 338, 10 mm is a high-speed steel twist drill designed for accurate drilling in metal and other hard materials. Compliant with DIN 338 standard, this 10 mm diameter drill bit is suitable for hand drills and drill presses, providing a balance of hardness and toughness for general metalworking tasks such as fastening, fabrication, and maintenance.

Advantages

The HSS material offers good wear resistance and heat resistance during continuous drilling operations, while the DIN 338 geometry ensures consistent centring and stable cutting performance. Its 10 mm diameter provides a common size for standard holes used in mechanical assembly and maintenance. The twist-flute design enables efficient chip evacuation and steady penetration in a variety of ferrous and non-ferrous metals.

Suitable for

• Drilling holes in steel, iron, cast iron and non-ferrous metals
• Workshop and production use with hand drills and drill presses
• General fabrication, repair and maintenance tasks
• Preparing holes for bolts, rivets and threaded inserts

Key specifications

• Material: high-speed steel (HSS)
• Standard: DIN 338 twist drill geometry
• Diameter: 10 mm
• Flute type: spiral twist for chip removal
• Recommended use: metal and other hard materials

How to use

Secure the workpiece and select the appropriate drilling speed for the material being worked on. Clamp the drill bit firmly in the chuck of a hand drill or drill press ensuring proper alignment. Use cutting lubricant when drilling harder metals to reduce heat and prolong tool life. Apply steady, even pressure and allow the drill to cut without forcing; periodically withdraw the bit to remove chips and prevent clogging.

Usage recommendations

For best results when drilling steel and other hard materials, use a suitable cutting fluid, maintain correct spindle speed (lower speeds for larger diameters and harder materials), and replace the bit when wear reduces cutting efficiency. Store the drill bit in a dry place to prevent corrosion.