Oregon Chain Sharpener Replacement Grinding Wheel — 1/8in. Thickness, For 1/4in., .325in.-Pitch (33, 34, 35 Series Chains Only), Mini 3/8in.-Pitch (90, 91 Series Chains Only)

Oregon® 4 1/8in. diameter grinding wheels leave a precision finish on saw chain and work with our Oregon® Mini Grinders Item#s 193061 and 19301. * For 1/4in.-pitch, .325in.-pitch (33, 34, 35 series chains only), mini 3/8in.-pitch (90, 91 series chains only) * 4 1/8in. wheel diameter * 7/8in. shaft diameter * 1/8in. wheel thickness