Drill bit Abraboro HSS conical 40.0 mm AB44540000 for metal

Abraboro HSS conical drill bit 40.0 mm is a high-speed steel cutting tool designed for metalworking. The conical geometry provides progressive cutting action that is suitable for enlarging existing holes, creating stepped holes and deburring edges in steel and other ferrous materials. Engineered for use in standard drill chucks, this bit is intended for workshop and industrial applications where heat resistance and edge retention are required.

Advantages

The HSS material ensures good hardness and temperature stability during prolonged drilling operations. The conical profile allows incremental diameter control and smoother entry into the workpiece compared with abrupt-cutting tools. The bit’s geometry reduces chattering and burr formation when used at appropriate speeds and with correct feed, delivering cleaner hole walls and more consistent diameters. Its compatibility with common drill chucks makes it simple to integrate into existing equipment.

Suitable for

• Enlarging or reaming existing holes in steel and other ferrous metals
• Creating stepped or countersunk profiles where a tapered cut is needed
• Deburring edges and smoothing hole entries after initial drilling
• Workshop and light industrial drill-press or hand-drill work with appropriate fixturing

Key specifications

• Material: High-speed steel (HSS) for heat resistance and wear performance
• Shape: Conical/tapered cutting profile for progressive diameter control
• Nominal diameter: 40.0 mm
• Intended materials: Steel and other ferrous metals
• Drive compatibility: Fits standard drill chucks

How to use

Secure the workpiece firmly in a vise or with appropriate clamping to prevent movement. Mount the conical HSS drill bit in a drill chuck with sufficient clamping length and ensure concentric alignment. Select a drilling speed suitable for high-speed steel and the workpiece material; lower speeds are generally recommended for larger diameters in steel. Apply steady, controlled feed pressure and allow the tool to cut progressively along its taper rather than forcing rapid penetration. Use cutting fluid to reduce heat and improve chip evacuation, and periodically withdraw the bit to clear chips when working deep or wide areas.

Usage recommendations

For best results, use appropriate cutting lubricant, moderate spindle speed, and a firm clamping setup. Inspect the bit for wear before use and replace if the cutting edge becomes dull or chipped to maintain hole quality and operator safety.