Conical HSS Metal Drill Bit Abraboro AB44519500 19.5 mm

The Conical HSS Metal Drill Bit Abraboro AB44519500 19.5 mm is a tapered high-speed steel drill designed for drilling and enlarging holes in steel and other ferrous materials. Its conical geometry allows gradual diameter increase and controlled cutting action, while HSS material offers heat resistance and wear durability for metalworking tasks. The bit is suited for use with handheld electric drills and drill presses in maintenance, fabrication and general workshop applications.

Advantages

This conical HSS drill bit provides progressive cutting that reduces chatter and improves centring when enlarging existing holes. The high-speed steel construction maintains hardness at elevated temperatures, extending tool life under continuous use. The single-piece design ensures rigidity and straightness during drilling, and the conical shape eliminates the need for multiple step sizes when enlarging holes to intermediate diameters.

Suitable for

• Enlarging or deburring holes in steel and other ferrous metals
• Metal fabrication and repair work in workshops and maintenance departments
• Use with hand drills and drill presses for controlled, progressive drilling

Key specifications

• Type: Conical (tapered) drill bit
• Material: High-speed steel (HSS) for heat resistance and wear strength
• Nominal diameter: 19.5 mm (conical profile covers a range of diameters up to 19.5 mm)
• Intended materials: Steel and other ferrous metals
• Recommended machines: Handheld electric drills and drill presses

How to use

Secure the workpiece firmly in a vise or with clamps to prevent movement. Select a suitable drill speed for HSS in steel (moderate RPM depending on material thickness and drill size) and use cutting fluid to reduce heat and improve chip evacuation. Start drilling with steady, even feed pressure; because of the conical shape, advance slowly to reach the desired diameter. Withdraw the bit periodically to clear chips and reapply lubricant if needed. After finishing, deburr edges to ensure a clean hole.

Usage recommendations

For best results, use appropriate cutting fluid when drilling steel, choose a moderate speed to avoid overheating, and ensure the drill chuck holds the bit securely to maintain alignment. If enlarging existing holes, position the conical bit centrally and progress gradually to avoid wall damage.