Drill Bit Abraboro HSS cylindrical 12.5 mm set of 5 (AB00011250)

Abraboro HSS cylindrical drill bits, 12.5 mm diameter, set of 5 are high-speed steel twist drills designed for creating clean 12.5 mm holes in ferrous and non-ferrous metals. The set provides multiple identical bits to support repeated drilling operations in workshop, maintenance, and fabrication environments. These cylindrical-shank bits are compatible with handheld drills and drill presses and are intended for use where durability and consistent hole size are required.

Advantages

Constructed from high-speed steel, these drill bits offer a balance of toughness and hardness for cutting metal at moderate speeds. The cylindrical shank enables secure clamping in standard drill chucks and chucks on drill presses. Supplied as a set of five, the package reduces downtime by providing spare bits for continuous work or replacement when bits wear. The 12.5 mm diameter is a common size for through-holes and fitting metal components.

Suitable for

• Drilling through mild steel, stainless steel, aluminum and other non-ferrous metals
• Workshop drilling tasks and metal fabrication
• Maintenance and repair operations requiring consistent 12.5 mm holes
• Use in handheld electric drills and drill presses

Key specifications

• Material: high-speed steel (HSS)
• Shank type: cylindrical
• Diameter: 12.5 mm
• Quantity: set of 5 identical drill bits
• Intended materials: ferrous and non-ferrous metals

How to use

Select an appropriate cutting speed for the metal being drilled and secure the 12.5 mm HSS drill bit in the drill chuck ensuring it is firmly clamped. Mark the drilling position and, where appropriate, use a center punch to prevent walking. Use steady feed pressure and maintain coolant or cutting fluid when drilling harder steels to extend tool life. For handheld drilling, keep the drill perpendicular to the workpiece; for repetitive or precision holes, use a drill press and suitable clamping to control alignment.

Usage recommendations

For best performance, start with a pilot hole when drilling thick or hard materials, use appropriate cutting fluid for heat reduction, and replace bits from the set when signs of wear—such as increased cutting force or poor hole finish—become apparent. Store bits in a dry place to prevent corrosion and periodically inspect for chipping before use.