Drill bit Tvardy HSS for metal 7.00 mm black-gold finish

Tvardy HSS drill bit for metal, 7.00 mm diameter, with black‑gold surface finish. Designed to cut precise holes in steel and other ferrous and non‑ferrous metals, this high‑speed steel (HSS) bit is suitable for workshop and industrial environments. The black‑gold coating reduces friction and improves wear resistance, while the 7.00 mm diameter provides a standard size for many fabrication, maintenance and repair tasks. The bit is compatible with hand drills and drill presses and is intended for use where accurate, repeatable metal drilling is required.

Advantages

The HSS material offers good hardness and heat resistance for sustained metal cutting. The black‑gold surface finish lowers friction between the cutting edge and the workpiece, helping to extend tool life and improve chip evacuation. Its 7.00 mm diameter provides consistent hole size and is well suited to general metalworking operations. The geometry of the tip ensures centred starts and stable drilling when used with appropriate speeds and cutting fluids.

Suitable for

• Drilling holes in steel and stainless steel (with appropriate speeds and cooling)
• Working with non‑ferrous metals such as aluminum and brass
• Fabrication and assembly tasks in workshops and light industrial settings
• Maintenance, repair and retrofit operations requiring precise hole diameters

Key specifications

• Material: High‑speed steel (HSS)
• Diameter: 7.00 mm
• Surface finish: black‑gold coating for reduced friction and improved wear resistance
• Tip geometry: standard conical point for general‑purpose metal drilling
• Compatibility: suitable for handheld drills and drill presses

How to use

Secure the workpiece and select a clamp or vise to prevent movement. Choose a suitable rotational speed for the material being drilled — lower speeds for stainless steel and higher speeds for softer non‑ferrous metals — and apply cutting fluid where appropriate to reduce heat build‑up. Align the bit with the intended mark, start drilling with light pressure to establish the hole centre, then apply steady pressure until the hole is complete. Withdraw the bit occasionally to clear chips and prevent clogging.

Usage recommendations

Use appropriate personal protective equipment including safety glasses and gloves. For hardened or high‑alloy steels consider pre‑drilling with smaller sizes and using cutting fluid; avoid excessive speed and feed to prolong bit life. Store the drill bit in a dry location to prevent corrosion of the coating.