Drill bit Abraboro HSS conical 31.0 mm AB44531000 for metal

The Abraboro HSS conical drill bit AB44531000 with a 31.0 mm diameter is a purpose-built tool for metalworking tasks that require tapered holes or controlled enlargement of existing holes. Manufactured from high-speed steel (HSS), this conical drill bit is designed to withstand the heat and wear typical of drilling in steel, iron and other ferrous materials, making it suitable for workshop and industrial settings where reliable cutting performance and dimensional stability are required.

Advantages

This HSS conical drill bit offers high wear resistance and good heat tolerance due to its high-speed steel construction, which helps preserve cutting edges during prolonged use. The conical geometry enables smooth progressive cutting for tapered holes and accurate hole enlargement while reducing chatter and providing predictable chip evacuation. Its robust design supports repeated use in professional metalworking applications with consistent results.

Suitable for

• Creating tapered or countersunk holes in steel and iron
• Deburring and enlarging pre-drilled holes in ferrous materials
• General workshop and industrial metal drilling tasks

Key specifications

• Material: High-speed steel (HSS)
• Tip shape: Conical/tapered
• Diameter: 31.0 mm
• Intended use: Metal drilling (steel, iron, other ferrous materials)

How to use

Secure the workpiece firmly and select appropriate clamping to prevent movement. Use a compatible drill press or hand-held drill with sufficient power and a suitable chuck to accommodate the bit shank. Start drilling at low speed to establish the centre and then apply steady feed pressure, increasing speed within the tool and machine limits as appropriate for the material. Use cutting fluid or coolant to reduce heat build-up and improve chip evacuation. Withdraw the bit periodically to clear chips if drilling deep tapered holes.

Usage recommendations

For best results when drilling steel and iron, use moderate cutting speeds and adequate cutting fluid; inspect the bit for wear and re-sharpen or replace as needed to maintain accuracy and prolong tool life.