Drill bit GRAPHITE HSS cylindrical for metal 5 mm (model 55H022)

GRAPHITE cylindrical HSS drill bit, 5 mm diameter, designed specifically for drilling metal. Manufactured from high-speed steel (HSS) to provide improved wear resistance and tolerance to elevated cutting temperatures encountered during metalworking. The bit features a straight cylindrical shank for secure clamping in standard three-jaw chucks and is compatible with hand drills and drill presses for workshop and DIY use.

Advantages

The HSS material ensures durability and resistance to softening at cutting temperatures, making the drill bit suitable for repeated metal drilling operations. Its cylindrical shank allows reliable clamping and stability during rotation, while the 5 mm diameter offers a common hole size for fasteners and fittings. The geometry of the tip is optimized for effective metal penetration and chip evacuation when used at recommended speeds and with appropriate lubrication.

Suitable for

• Drilling holes in steel and iron components
• Working with non-hardened metal sheets and plates
• General workshop and maintenance tasks using hand drills or drill presses
• DIY projects requiring 5 mm holes for bolts, rivets, or fittings

Key specifications

• Material: High-speed steel (HSS)
• Shank type: Cylindrical (straight) shank for standard chucks
• Diameter: 5 mm
• Intended use: Metal drilling
• Compatibility: Hand drills and drill presses

How to use

Secure the drill bit in the chuck so that the shank is seated firmly and runs true. Select an appropriate spindle speed for 5 mm HSS bits when drilling metal—moderate speeds are recommended to balance cutting performance and heat generation. Apply cutting fluid or lubricant when drilling thicker or harder metal to improve chip evacuation and extend tool life. Use steady feed pressure and avoid excessive axial force that could cause breakage or rapid wear. After use, remove chips and wipe the bit clean before storage.

Usage recommendations

For best results, pre-center with a punch on thin or slippery metal surfaces to prevent walking, and adjust drilling speed according to the material: lower speeds for harder steels, higher speeds for softer metals. Regularly inspect the cutting edges and replace the bit if signs of dulling or chipping appear to maintain hole quality and safety.