Drill bit Tvardy HSS M2 extended 6.5 mm for metal, black-gold finish

Extended HSS M2 twist drill bit Tvardy, diameter 6.5 mm, is engineered for drilling metal with increased reach. The solid high‑speed steel (HSS M2) body and extended shank allow deeper holes and access to recessed or hard‑to‑reach areas. A black‑gold surface finish improves wear resistance and reduces friction during cutting. Compatible with standard chase, hand drills and drill presses, this drill bit is intended for use with steel, iron and non‑ferrous metals in maintenance, assembly and metalworking operations.

Advantages

The HSS M2 material combines hardness and toughness for reliable cutting performance on metal. The extended length provides extra reach for deeper holes without step drilling or additional tooling. The black‑gold surface finish helps protect the cutting edges from corrosion and lowers heat buildup, contributing to longer tool life. The 6.5 mm diameter is a common size for pilot and through holes in metal fabrication and repair tasks.

Suitable for

• Drilling steel plates and structural components
• Creating through‑holes in iron and cast materials
• Work on non‑ferrous metals such as aluminium and brass
• Maintenance, repair and fabrication in workshops and garages
• Accessing recessed fastener locations where standard length bits are too short

Key specifications

• Material: High‑speed steel (HSS M2)
• Diameter: 6.5 mm
• Type: Twist drill / jobber style with extended shank
• Finish: Black‑gold coated surface for reduced friction and improved wear resistance
• Intended materials: Steel, iron, aluminium, brass and other non‑ferrous metals
• Compatibility: Hand drills and drill presses with standard drill chucks

How to use

Secure the drill bit in the chuck so the shank is held firmly and runout is minimised. Mark and centre‑punch the drilling point on the workpiece to prevent wandering, then clamp the workpiece securely. Use appropriate cutting speed and feed for the material being drilled: lower speeds for harder steels, higher speeds for softer non‑ferrous metals. Apply steady pressure and allow the bit to cut without forcing; retract occasionally to clear chips and coolant. Use cutting fluid when drilling steel to reduce heat and extend tool life. After use, clean and store the bit to prevent corrosion.

Usage recommendations

For best results when drilling metals, use centre‑punching, correct speeds and cutting fluid. Inspect the bit for wear before each use and replace it when the cutting edge becomes dull to maintain hole quality and avoid workpiece damage.