It allows to perform the valve grinding operation quickly.The precision machined rotating parts guarantee an almost unlimited duration.Light, practical and easy to handle, it can also be used by inexperienced hands.paltry air consumption.The adjustment of the shaft speed occurs by increasing or decreasing the air flow.Makes the traditional valve grinding technique automatic and therefore perfectly homogeneous, since it acts by means of alternating rotations to the right and left.Supplied in a plastic box, complete with accessories for connecting the valves both from the stem and the mushroom.
Includes three cups 21mm, 33mm and 39 mm and 3 valve stem adaptors