Cone Countersink Abraboro HSS-Co 1.5–6.3 mm, 45 mm cutting length

The Abraboro cone countersink HSS-Co 1.5–6.3 mm with a 45 mm cutting length is a tool for producing precise conical recesses and for deburring round holes. Made from high-speed steel with cobalt alloy, the countersink is designed to maintain edge hardness and resist heat during interrupted cutting and light to moderate production tasks. The tool is intended for creating clean chamfers and enlarging or finishing holes in metallic materials where controlled geometry and surface quality are required.

Advantages

The HSS-Co material increases wear resistance and thermal stability compared with standard high-speed steel, helping the cutting edge retain shape under elevated temperatures. The 1.5–6.3 mm diameter range offers flexibility for working on small to medium holes without changing tools frequently. A 45 mm cutting length provides deep engagement when needed while supporting stable chip evacuation and consistent countersink geometry.

Suitable for

• Deburring and chamfering holes in steel and non-ferrous metals
• Toolmaking and maintenance operations requiring precise countersinks
• Finishing drilled holes prior to assembly or fastening
• Light-to-moderate production and repair workshops

Key specifications

• Cutting diameter range: 1.5–6.3 mm
• Cutting length: 45 mm
• Material: high-speed steel with cobalt (HSS-Co)
• Geometry: cone-shaped countersink for chamfering and recessing
• Intended use: metalworking and maintenance

How to use

Secure the workpiece and select appropriate spindle speed for the material being machined. Mount the countersink in a compatible holder or drill chuck ensuring concentric alignment. Apply moderate feed pressure and advance the countersink into the hole until the desired chamfer depth or cone recess is reached, then retract while maintaining rotation to clear chips. Use cutting fluid when processing steels or harder alloys to reduce heat and prolong tool life.

Usage recommendations

For best results, match spindle speed and feed to the workpiece material, use suitable cutting fluid when machining steels, and inspect the cutting edge regularly for wear. Replace the tool when edge rounding or chipping affects chamfer quality.