Drill bit set Abraboro HSS for metal, cylindrical shank, 11 mm, 5 pcs (AB44011000)

Abraboro HSS drill bit set for metal comprises five 11 mm high-speed steel bits with a cylindrical shank designed for drilling steel and other ferrous materials. The bits are intended for use with stationary drill presses and handheld drills where a precise 11 mm hole is required. The set provides a consistent cutting geometry and material hardness appropriate for general metalworking, maintenance, and fabrication tasks.

Advantages

High-speed steel construction ensures a balance of hardness and toughness for cutting into ferrous metals while maintaining heat resistance during moderate drilling conditions. The cylindrical shank fits standard drill chucks, allowing quick and secure mounting in a variety of machines. A matched pack of five identical 11 mm bits ensures consistent hole diameter and reduces downtime when multiple holes of the same size are needed.

Suitable for

• Drilling through mild and medium carbon steels
• Metal fabrication and assembly tasks
• Maintenance and repair work on machinery and equipment
• Use with drill presses and handheld metal drills
• Creating precise 11 mm clearance or pilot holes

Key specifications

• Material: High-speed steel (HSS)
• Shank type: Cylindrical shank (round)
• Drill diameter: 11 mm
• Number of pieces: 5
• Intended materials: Steel and other ferrous metals

How to use

Select an appropriate drill speed and cooling method for the type and thickness of metal you are working with. Secure the workpiece, mark the drilling position, and clamp the bit firmly in the drill chuck. Start drilling at a moderate feed, applying steady pressure and using cutting fluid or coolant where needed to reduce heat and prolong bit life. Withdraw the bit periodically to clear chips, and complete the hole with controlled feed until the desired depth is reached.

Usage recommendations

For best results when drilling steel, use a cutting fluid to reduce heat and improve chip evacuation. Begin with a pilot hole if drilling thick or hardened material, and match drill speed to the material grade—slower speeds for harder steels. Inspect bits for wear or damage before use and replace when edge rounding or chipping is visible.