(1) the person standing on the side of the grinding machines, prevent wheel fragmentation, debris flying out of the assault;
(2) the distance of both hands to hold a knife to release the elbows clamped waist, to reduce the jitter Brothers;
(3) Brothers, turning to put the level of center of the wheel, tip slightly upturned, about 3 ° to 8 °, turning tool contact with the wheel should be about the direction of horizontal movement. When turning tool to leave the wheel, turning tools need to lift, to prevent wear a good blade wheel bumps;
(4) grinding the flank, the shank tail to the left partial point of view of an angle; grinding vice flank, shank tail to the right side of a Deputy declination angle;
(5) sharpening the tip of the arc, usually to the left hand turning tool front-end as a fulcrum, with the right hand rotate the rear of the turning tools

Sharpening safety knowledge
1) before sharpening tool should first check the wheel for cracks, wheel spindle nut is tightened, and try to switch in order to avoid the wheel fragmentation or flying out of wounding.
2) grinding tool can not force too much, otherwise it would hand slip and touch the wheel surface, resulting in work-related injuries.
3) Brothers should wear protective glasses to avoid the gravel and iron flying into the eyes.
4) Do not sharpening when the direction of rotation of the wheel, standing, to prevent accidents.
5) grinding the knife head must be the knife head into the arbor.
6) wheel bracket and wheel clearance shall not be greater than 3mm into the discovery is too large, should be adjusted to appropriate.