Drill bit GEKO 12.0 mm HSS TiN DIN338 for metal

GEKO 12.0 mm HSS TiN DIN338 metal drill bit is designed for reliable drilling in a variety of metal materials. Manufactured from high-speed steel (HSS) with a titanium nitride (TiN) coating, the bit delivers improved surface hardness and increased wear resistance. The DIN338 geometry provides a robust web, precise point angle and flute profile to promote efficient chip evacuation and stable drilling performance.

Advantages

The TiN coating reduces friction and extends cutting life compared with uncoated HSS bits, making it suitable for repeated use in workshop and maintenance environments. DIN338 geometry ensures consistent centring and reduced walking when starting holes, while the 12.0 mm diameter offers a balance between hole size and rigidity for general metalworking tasks. Its construction provides good heat resistance and dimensional stability under typical drilling loads.

Suitable for

• Drilling holes in mild steel, stainless steel (with appropriate speeds and cooling), cast iron and non-ferrous metals
• Workshop fabrication, assembly and maintenance tasks
• Preparation of parts for tapping or fastening operations
• Use in hand drills and drill presses with suitable chuck capacity

Key specifications

• Diameter: 12.0 mm
• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN) for reduced friction and increased wear resistance
• Geometry: DIN338 standard for general-purpose metal drilling
• Application: Designed for drilling metal materials

How to use

Secure the workpiece and select an appropriate speed and feed for the metal to be drilled. Use cutting fluid or coolant when working with harder steels or stainless steel to reduce heat and prolong tool life. Start drilling at low speed to establish the hole, then increase speed as appropriate while maintaining steady pressure. Clear chips periodically to avoid clogging the flutes, and allow the bit to cool if it becomes overheated. Inspect the bit periodically for wear or damage and replace when cutting performance declines.

Usage recommendations

For best results, clamp the workpiece firmly, use a center punch to prevent walking, and apply an appropriate cutting fluid. Match drill speed to the material hardness (lower speeds for harder alloys) and avoid excessive side pressure to extend tool life.