Drill Bit Tvardy HSS black-gold for metal 1.00 mm, precision twist drill

Tvardy HSS black-gold 1.00 mm metal drill bit is a high-speed steel twist drill designed for drilling precise, small-diameter holes in metal. The 1.00 mm diameter and tapered point geometry provide accurate centering and clean entry in thin sheet metal, steel and other ferrous materials. A black-gold coating improves wear resistance and reduces friction for smoother cutting and longer tool life. The bit is compatible with standard chucks on hand drills and drill presses used in workshops and light production environments.

Advantages

The HSS material offers a balance of hardness and toughness suitable for drilling metal at moderate speeds. The black-gold surface coating enhances wear resistance and lowers heat build-up during cutting, contributing to more consistent hole quality. At 1.00 mm diameter this precision twist drill produces clean, concentric holes with minimal burr formation when used with appropriate feeds and speeds. The straight shank fits standard drill chucks, making it easy to install and replace.

Suitable for

• Drilling precise small holes in thin sheet metal and steel
• Use in hand drills for light workshop tasks
• Use in drill presses for repeatable production drilling
• Work on ferrous materials and similar alloys

Key specifications

• Material: high-speed steel (HSS)
• Coating: black-gold surface treatment for wear resistance
• Diameter: 1.00 mm
• Type: precision twist drill (spiral fluted)
• Shank: straight round shank for standard chucks

How to use

Secure the drill bit firmly in a properly tightened chuck before starting. Mark the drilling point and, for best results on very small diameters, use a center punch to create a shallow dimple for precise positioning. Select appropriate cutting speed and feed for HSS on metal — moderate spindle speeds and light, steady feed reduce breakage risk. Use cutting fluid for steel and other ferrous materials to improve surface finish and extend tool life. Keep the drill bit aligned perpendicular to the workpiece to avoid wandering and reduce burrs.

Usage recommendations

Use steady, controlled drilling parameters and cutting fluid when working with steel; for thin sheet metal consider backing the material to prevent deformation and ensure a clean exit hole.