Drill bit set Verto HSS cylindrical for metal 7.5 mm, 10 pcs

Verto HSS cylindrical drill bit set for metal contains ten identical 7.5 mm diameter bits manufactured from high-speed steel (HSS). The set is designed for cutting and drilling through a range of ferrous and non-ferrous metals where a 7.5 mm hole is required. Each bit features a straight cylindrical shank that fits standard chucks and holders used in hand drills and drill presses, providing a simple and consistent solution for routine metalworking operations in workshops, repair shops and small fabrication tasks.

Advantages

The HSS material delivers good hardness and heat resistance for general-purpose metal drilling, preserving cutting edges under moderate speeds and loads. The cylindrical shank ensures compatibility with most drill chucks and reduces the need for additional adaptors. Supplied as a set of ten, the kit provides spare bits for repetitive work and reduces downtime for sharpening replacements. The uniform 7.5 mm diameter simplifies inventory and selection when a single-size hole is repeatedly required.

Suitable for

• Drilling holes in mild steel and cast iron
• Work on non-ferrous metals such as aluminium and brass
• Routine workshop repairs and maintenance
• Small fabrication tasks and prototype work
• Use with standard hand drills and drill presses

Key specifications

• Material: High-speed steel (HSS)
• Diameter: 7.5 mm
• Number of pieces: 10
• Shank type: Cylindrical (straight)
• Application: Metal drilling (ferrous and non-ferrous)

How to use

Secure the appropriate drill bit in a compatible drill chuck, ensuring the bit is clamped straight and tightly. Mark the drilling point on the workpiece and, if required, make a small starter indentation with a centre punch to prevent walking. Use appropriate cutting speed and feed for the metal type, apply cutting fluid or lubricant when drilling harder metals to reduce heat and prolong bit life, and clear chips regularly. After drilling, remove burrs from the hole with a deburring tool or file to obtain a clean finish.

Usage recommendations

For best results, match drilling speed to the material: lower speeds for harder steels and higher speeds for softer non-ferrous metals. Use light, steady pressure rather than forceful pushing; apply cutting fluid when working with stainless or hardened steels. Replace or re-sharpen bits showing rounded edges or excessive wear to maintain hole quality and prevent damage to the workpiece.