1PGA hand-cranked grinder, used with a full-surface grinding machine, with a simple pressing roller for convenient precision grinding. 2Double roller design, no need to adjust the center, hold the workpiece between the wheels when holding, you can get concentric circles. 3The left and right direction of the rotating roller can be adjusted to make the workpiece advance or retreat and then grind. 4The pressure screw on the pressure arm can adjust the pressure and match the punch of different sizes to make it more stable. 5The products are well-made and ensure the high precision of the products.
