Drill bit Abraboro HSS cylindrical 7 mm set 10 pieces (AB44007000)

Abraboro HSS cylindrical drill bit set in 7 mm diameter, 10 pieces, is designed for standard metalworking and maintenance tasks that require accurate 7 mm holes. The bits are made from high-speed steel (HSS), providing the hardness and heat resistance needed for drilling into steel, cast iron and other hard materials. The cylindrical shank fits common three-jaw chucks and bench drills, making this set suitable for general workshop use and repair applications.

Advantages

High-speed steel construction offers a balance of toughness and heat resistance for sustained drilling performance. The consistent 7 mm diameter across all pieces ensures repeatable hole sizes for assembly or fastening tasks. Cylindrical shanks provide compatibility with standard chucks and straightforward mounting. Supplied as a 10-piece set, the pack reduces downtime by providing immediate replacements when individual bits wear or break.

Suitable for

• Drilling holes in mild and medium-hard steels
• Workshop and general maintenance drilling
• Metal fabrication and repair tasks
• Preparation of holes for bolts, rivets and dowels requiring 7 mm diameter

Key specifications

• Material: High-speed steel (HSS)
• Tip/point type: Standard twist drill geometry suitable for metal
• Shank type: Cylindrical (round) shank for standard chucks
• Diameter: 7.0 mm
• Set quantity: 10 pieces

How to use

Secure the selected drill bit in the drill chuck and tighten firmly. Mark and clamp the workpiece to prevent movement. Use cutting fluid or coolant when drilling metal to reduce heat and extend bit life. Start at low speed to establish the hole and then increase speed appropriate to the material and drill size. Apply steady, moderate pressure and periodically withdraw the bit to clear chips.

Usage recommendations

For best results when drilling metal, use appropriate cutting fluid, clamp the workpiece securely, and avoid excessive feed pressure. Replace bits showing significant wear or chipping to maintain hole accuracy and prevent workpiece damage.