The G & J Hall CONECUT® is a versatile hole-cutting tool for rapid drilling and enlarging holes in thin materials up to 2mm thick. Designed for industrial applications, the diameter of the hole increases as the CONECUT® is advanced into the material, providing infinitely variable sizes

For use in sheet steel, non-ferrous metals, plastics, Formica and plywood

The conical shape of the tool enables any size of hole to be drilled between the bottom and the top of the taper.
When drilling metals always use a coolant.

Conecut® applications:
Electrical
Heating
Ventilation
Plumbing
Shop fitting installations etc.
Auto body repair
Control panels
Sheet metalwork etc.
Maintenance

The Halls CC O CONECUT® High Speed Steel Sheet & Tube Drill Bit has the following specification:

Size Range: 9.5 - 22.5mm.
Chuck: 3/8in/10mm.