Drill bit Tvardy HSS M2 8.0 mm extended black-gold for metal

Tvardy extended HSS M2 drill bit, 8.0 mm diameter, black‑gold finish, is designed for drilling metal with increased reach. The straight shank and high-speed steel M2 construction deliver cutting performance suitable for steel and other ferrous materials. Its extended length provides access to recessed holes and deeper workpieces when used with hand drills or drill presses.

Advantages

The HSS M2 material offers heat resistance and wear durability during continuous metal drilling. The black‑gold surface finish reduces friction and enhances chip evacuation, supporting cleaner holes and longer tool life. The extended design increases working reach without sacrificing rigidity, and the straight shank ensures secure clamping in standard chucks and fixtures.

Suitable for

• Drilling through steel plates and structural steel
• Working on ferrous components in maintenance and repair
• Creating deeper or recessed holes where a standard length bit is insufficient
• Use with hand drills and drill presses for general metalworking

Key specifications

• Material: high-speed steel (HSS M2)
• Diameter: 8.0 mm
• Finish: black‑gold surface treatment
• Shank type: straight shank for standard chucks
• Design: extended length for increased reach
• Primary use: drilling ferrous metals

How to use

Select proper cutting speed, feed rate, and appropriate cutting fluid for the metal being drilled. Secure the workpiece and clamp the drill bit firmly in the chuck. Start drilling at low speed to establish the pilot groove, then apply steady pressure and cooling lubricant for through holes or deep cavities. Withdraw periodically to clear chips when drilling deep holes to maintain cutting efficiency and prevent bit overheating.

Usage recommendations

For best results on steel, use cutting oil, moderate spindle speeds and controlled feed. Inspect the bit for wear before use and replace when edge rounding or excessive chipping appears to maintain hole quality and operator safety.