Drill bit GEKO G39610 HSS TiN 11.0 mm DIN 338 for metal

GEKO G39610 HSS TiN 11.0 mm DIN 338 is a solid high-speed steel drill bit with a titanium nitride (TiN) coating, produced to DIN 338 standards for metalworking. The 11.0 mm diameter and geometric design make this drill bit suitable for machining ferrous and non-ferrous metals, providing consistent hole quality in through-holes, pilot holes and general metal drilling operations. The TiN coating increases surface hardness and reduces friction between the cutting lips and the workpiece, prolonging tool life under normal operating conditions.

Advantages

The TiN coating enhances wear resistance and heat tolerance compared to uncoated HSS, enabling longer cutting life and more stable drilling performance in continuous or intermittent metalworking. Manufactured to DIN 338 specifications, the drill geometry provides reliable centring, controlled chip formation and improved hole straightness. Compatibility with handheld drills and drill presses makes it versatile for workshop and on-site metal drilling tasks.

Suitable for

• Drilling through-holes in mild steel, stainless steel, aluminium and non-ferrous alloys
• Creating pilot holes prior to tapping or reaming
• General metal fabrication, maintenance and repair work

Key specifications

• Material: solid high-speed steel (HSS)
• Coating: titanium nitride (TiN)
• Diameter: 11.0 mm
• Standard: DIN 338 (jobber drill geometry for metal)
• Shank type: straight cylindrical shank suitable for standard chucks
• Typical application: drilling ferrous and non-ferrous metals

How to use

Select appropriate cutting speed and feed for the workpiece material and drill diameter; use cutting fluid or lubricant for stainless steel and hard alloys to reduce heat and improve chip evacuation. Secure the workpiece in a vise or fixture to prevent movement and ensure perpendicular alignment to the drill axis. Start drilling at low speed to establish a centre, then increase speed within recommended ranges for HSS TiN-coated drills while maintaining steady feed until the hole is completed.

Usage recommendations

For best results, use moderate cutting speeds and adequate lubrication when drilling hardened or stainless materials. Re-sharpening can restore geometry on worn HSS bits but should be performed by a qualified operator to preserve the TiN coating near the cutting edge where applicable.