Drill bit Abraboro HSS cylindrical for metal 6.8 mm, set of 10 (AB00010681)

Abraboro HSS cylindrical drill bits for metal, diameter 6.8 mm, set of 10 pieces is intended for general metalworking tasks where precise through-holes or pilot holes are required. Manufactured from high-speed steel (HSS), these cylindrical-shank bits are suitable for drilling steel and common metallic materials and are compatible with standard drill chucks used in workshop and maintenance equipment.

Advantages

The HSS material provides high hardness and heat resistance during drilling, enabling consistent cutting performance in a variety of ferrous and non-ferrous metals. The cylindrical shank design ensures reliable clamping in standard chucks and straightforward bit changes. Supplied as a set of ten identical 6.8 mm bits, the pack reduces downtime by providing spare bits for repeated use and for work in different locations.

Suitable for

• Drilling through-holes and pilot holes in steel and metal sheets
• General fabrication and metal repair tasks
• Maintenance and service work in workshops and industrial environments
• Use with handheld drills and drill presses that accept cylindrical shanks

Key specifications

• Material: high-speed steel (HSS)
• Shank type: cylindrical (round) shank for standard chucks
• Drill diameter: 6.8 mm
• Set quantity: 10 pieces
• Intended materials: steel and common metallic materials

How to use

Select a suitable drilling speed and appropriate cutting fluid for the material being drilled. Secure the workpiece and clamp the cylindrical shank in the drill chuck, ensuring concentric alignment. Start drilling at a moderate speed and apply steady, even pressure; for thicker or harder metals use reduced speed and periodic pecking to clear chips and reduce heat buildup. Replace worn bits from the set to maintain hole quality.

Usage recommendations

For best results, use cutting fluid or lubricant when drilling steel to extend bit life and improve chip evacuation. Inspect bits for wear or chipping before use and match drill speed to material hardness: higher speeds for softer metals and lower speeds for hard or thick sections.