Drill Bit for Metal Smart HSS Cylindrical 7 mm, 10 pcs (11-070)

Smart HSS cylindrical drill bits, 7 mm diameter, set of 10 pieces designed for accurate drilling in ferrous and non-ferrous metals. These high-speed steel (HSS) bits have a standardized cylindrical shank suitable for use in hand drills and drill presses. The set provides uniform cutting geometry and wear resistance appropriate for workshop, maintenance and light industrial tasks.

Advantages

The HSS material ensures good hardness and heat resistance during continuous drilling, reducing wear and maintaining cutting edge integrity. Cylindrical shanks offer compatibility with most standard chucks and simplify bit changes. Supplied as a set of 10 identical bits, it provides cost-effective replacement pieces and reduces downtime when a tip becomes worn. The 7 mm diameter is a common size for precision holes in metal components.

Suitable for

• Drilling holes in steel, stainless steel and cast iron (depending on alloy and thickness)
• Working with non-ferrous metals such as aluminium, brass and copper
• General workshop repairs and maintenance tasks
• Use with handheld electric drills and bench drill presses

Key specifications

• Material: High-speed steel (HSS)
• Shank type: Cylindrical shank compatible with standard chucks
• Drill diameter: 7 mm
• Quantity in set: 10 pieces
• Typical applications: Metal drilling, workshop and maintenance use

How to use

Secure the appropriate drill bit in the chuck and tighten firmly to prevent slipping. Use cutting fluid or coolant when drilling harder metals to reduce heat build-up and prolong bit life. Start at low speed to establish the hole, then increase RPM as appropriate for the material and drill size. Apply steady, moderate pressure and withdraw periodically to clear chips. After use, clean the bits and store them in a dry place to avoid corrosion.

Usage recommendations

For best results when drilling metal, select a drilling speed appropriate to the material (lower RPM for harder alloys), use lubrication for heat management, and replace bits when they show visible wear or reduced cutting performance.