ST1378 = Eve Silicon Abrasives Medium/Black Cylinder (Pkg of 10)

Unmounted, rubberized abrasives impregnated with silicon carbide grit. Perfect for light deburring, cleaning, smoothing, and polishing with your flexshaft machine.

Black is medium (220 grit).

Cylinder measures 13/16" x 1/4" (20.6x6.3mm)

Use a 3/32" threaded mandrel (#43.124)