Drill bit Tvardy HSS for metal 1.50 mm, black-gold finish, model T02015

Tvardy HSS drill bit for metal, 1.50 mm diameter, black-gold finish (model T02015) is a precision cutting tool designed for drilling small-diameter holes in a variety of metal materials. Manufactured from high-speed steel (HSS), this drill bit combines hardness and toughness for consistent performance when used in hand drills and drill presses. The black-gold surface finish improves wear resistance and helps reduce friction during cutting, contributing to stable hole quality in thin-walled parts and sheet metal.

Advantages

The HSS material provides a balance of hardness and toughness suitable for repeated drilling in ferrous and non-ferrous metals. The black-gold surface finish enhances wear resistance and reduces built-up material on the cutting edges, supporting longer tool life and more consistent hole diameters. Its 1.50 mm diameter offers precise control for small, accurate holes, and the geometry is optimized for general metalworking applications in both manual and machine drilling setups.

Suitable for

• Drilling precise small-diameter holes in sheet metal and thin-walled components
• General metalworking tasks requiring 1.50 mm holes
• Use in hand drills and bench or pillar drill presses
• Projects on steel, stainless steel, aluminum and other common metals (appropriate cutting speeds and cooling applied)

Key specifications

• Material: high-speed steel (HSS)
• Nominal diameter: 1.50 mm
• Surface finish: black-gold coating for improved wear resistance
• Intended use: drilling metal sheets and thin-walled metal parts
• Compatibility: suitable for hand-held drills and drill presses

How to use

Select an appropriate rotational speed for the 1.50 mm HSS drill bit based on the metal being machined; lower speeds for harder steels and higher speeds for softer non-ferrous metals. Secure the workpiece firmly in a vise or clamping fixture to prevent movement. Center-punch the drilling location to guide the bit, start drilling with light pressure to establish the hole, and then apply steady feed while avoiding excessive side loads. Use cutting fluid or coolant when drilling steel or stainless steel to reduce heat and prolong bit life. Clear chips regularly to prevent clogging and overheating.

Usage recommendations

For best results, match drill speed and feed to the material and maintain adequate cooling; replace the bit once wear affects hole accuracy or cutting performance.
Store the drill bit in a dry place and inspect before use for any signs of damage or bluntness that could affect hole quality.