Drill bit Abraboro HSS cylindrical for metal 10.5 mm, set of 5 (AB00011051)

Abraboro HSS cylindrical drill bits for metal, diameter 10.5 mm, set of 5 are designed for cutting and drilling in steel, iron and similar ferrous materials. Manufactured from high-speed steel (HSS), these bits maintain hardness at elevated temperatures and provide stable drilling performance. The cylindrical (straight) shank fits standard three-jaw chucks and clamps used in drill presses and hand drills, enabling straightforward bit changes and reliable centering for repetitive hole making.

Advantages

The high-speed steel construction offers good wear resistance and heat tolerance during continuous drilling operations. Uniform 10.5 mm diameter across the set ensures consistent hole sizes for series work. The cylindrical shank design provides compatibility with common drill chucks and simplifies handling in workshop and maintenance environments. Supplied as a set of five, the package reduces downtime by providing immediate replacements for worn bits.

Suitable for

• Drilling holes in mild and medium carbon steel
• Workshop and maintenance tasks requiring repeatable hole diameters
• Use in hand-held drills and drill presses with standard chucks
• Preparing holes for bolts, rivets and mechanical fastenings in metal

Key specifications

• Material: high-speed steel (HSS)
• Overall diameter: 10.5 mm
• Shank type: cylindrical (straight) shank compatible with standard chucks
• Pack quantity: set of 5 drill bits
• Typical application: drilling ferrous metals (steel, iron)

How to use

Select an appropriate drill speed for 10.5 mm HSS bits and the metal being worked—slower speeds for harder steels and higher speeds for softer metals. Secure the workpiece and clamp it to prevent movement. Fit the cylindrical shank into a properly tightened chuck. Use cutting fluid or lubricant for improved chip evacuation and reduced heat buildup, and apply steady, moderate feed pressure to avoid bit breakage. Retract occasionally to clear chips when drilling deep holes.

Usage recommendations

For best tool life and hole quality, use appropriate cutting fluid, avoid excessive feed force, and choose drill speeds suited to the metal grade. Inspect bits regularly for wear or chipping and replace from the set when performance declines.