Drill bit GRAPHITE 57H152 titanium-coated cylindrical 9.5 mm for metal

The GRAPHITE 57H152 titanium-coated cylindrical drill bit with a 9.5 mm diameter is designed for drilling metal workpieces. Its cylindrical shank fits standard drill chucks, and the titanium coating increases surface hardness and resistance to wear during repeated drilling operations. The bit is suitable for general metalworking tasks where accurate, clean holes in steel and non-ferrous metals are required.

Advantages

The titanium coating provides improved wear resistance and extends the service life of the cutting edges compared with uncoated bits. The cylindrical shank ensures secure mounting in common drill chucks, enabling stable rotation and consistent hole quality. The 9.5 mm diameter is appropriate for medium-diameter holes in repairs and workshop applications, while the cutting geometry is optimised for metal drilling to reduce burr formation and improve hole finish.

Suitable for

• Drilling holes in steel and cast iron where moderate precision is required
• Working with non-ferrous metals such as aluminum, copper and brass
• Workshop repairs, maintenance tasks and general metal fabrication
• Use in hand drills and drill presses that accept cylindrical shanks

Key specifications

• Tip/coating: titanium-coated cutting surface for increased hardness
• Diameter: 9.5 mm
• Shank type: cylindrical shank compatible with standard chucks
• Intended material: steel and non-ferrous metals
• Application: general metal drilling and workshop use

How to use

Secure the drill bit in the drill chuck, ensuring the shank is fully seated and tightened to prevent slipping. Select an appropriate spindle speed for the material being drilled—lower speeds for harder steels and higher speeds for softer non-ferrous metals. Use cutting fluid or lubricant when drilling steel to reduce heat buildup and extend tool life. Apply steady, moderate pressure; avoid excessive force that could cause bit breakage or poor hole quality. Withdraw the bit periodically to clear chips when drilling deep holes.

Usage recommendations

For best results, match drilling speed and coolant to the workpiece material: use low speeds and cutting fluid for hardened or alloy steels, and higher speeds for aluminium and brass. Inspect the titanium coating and cutting edges regularly and replace the bit when wear degrades hole accuracy.