Lisle 23500 - Engine Cylinder Glaze Breaker - Stone Type

Controlled pressure assures positive, adjustable contact through full range. Operates with any electric drill. Furnished with 3" long 220 grit stones. Adjustable stop collar permits quick selection of two ranges, from 2" to 4" and from 4" to 7". Stone arms easily compress to eliminate cylinder scratches when inserting and removing.