Change shaft can be mounted in an electric drill grinding, cutting tiles, wood, metal polishing etc.
Triangle shape shank design clipping the drill tighter no easy to shake and slip 10mm diameter nut.
Fit for 10mm above drill chuck and 16mm or less inner diameter cutting blades
The shank is fit for 8mm above drill chuck.

Material: Medal

Connecting Shaft Diameter:10mm

Rod Shape :triangle

Note:

1.Transition: 1cm=10mm=0.39inch.