● The patented vertical grinding direction allows you to operate it easy. ● All adjustment levers have been properly arranged, which allows operator to adjust rather easily cutting angle, back clearance angle, teeth depth and pitch of saw blade. Therefore, grinding sharp saw blade became quick and precise. ● Patented saw blade thickness adjustment ● Tooth profile cam ● Main parts all utilize SKD 11 high carbide steel and have been through grinding and heat-treating.