• Full 2” to 7” Range (50.8 - 177.8mm). • 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 range settings, from 2” to 4” and from 4” to 7”. • Stone arms are easily compressed to eliminate cylinder scratches.
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