For quick-change system TR, plastic external thread with shank, standard For a wide range of applications such as grinding transitions, deburring edges, or removing parting lines and machine marks. Also suitable for processing light contours and for straight surfaces. Works most effectively on pneumatic tools. Item Article Design Sanding Disc Outer diameter 50.0 mm Characteristics medium Application Other , universal Main color red Version Grinding/Polishing agent Tool holder TR mounting