3 Pack Brake Cylinder Hones Grinding Holes from 3/4" to 7" in Diameter, Deglazer Engine Cylinder Hone Set, Adjustable Brake Piston Honing Tools with 220 Grit Stones

3 pieces different sizes of engine cylinder abrasive, operate any standard 3/4" to 7" drill.The three-piece adjustable cylinder grinding set is designed for rapid and accurate deglaze of cylinders.Powerful arm design allows abrasive to be precisely aligned.Knurled nut controls tension.SMOOTH glaze-breaking ability.Tough flexible shaft, easy to use, automatic centering