the edge of the grinding wheel surface to settle

1, the edge of the grinding wheel surface to settle.
Grinding bit before the first bit of the main cutting edge of the grinding wheel surface placed on a level surface, that is, to ensure the contact edge grinding surface, the blade to be ground. This is the bit position of the first step and the wheel relative to the position and then slowly to gracefully by grinding the surface.
2, the bit axis oblique to the  abrasive roll surface with the wheel angle of 60 °.
This angle is the angle of the drill front, then the angle is wrong, will directly affect the size and angle drill main cutting edge shape and chisel edge angle. This is the bit line and the wheel axis of the positional relationship between the surface, taking the line 60 °, this angle is generally more accurate to see. Here we note that  sanding paper roll the relative levels before the drill grinding and angular positions, both overall plans, do not neglect to settle edge gracefully degree angle, or the angle to gracefully while ignoring settle edge.
3, followed by the grinding edge back.
After contacting wheel edge, from the cutting edge to the back of the main mill, that is from the drill edge first came into contact with wheels, then slowly down along the entire flank wear. Drill cut can gently touch wheel, the first for a smaller amount of sharpening, and  cutting disc observe the spark uniformity, timely adjustment of hand size of the pressure, but also pay attention to the drill bit cool, not be allowed to wear too much, causing discoloration edge , and to the edge annealing. Discovery edge temperature is high, the drill should be promptly cooled.
4 blade to swing up and down the drill, drill the tail can not be warped.
This is a standard drill grinding operation, the main cutting edge to swing up and down on the wheel, that is, the front of the hand grip drill evenly to the surface of the wheel of the drill bit up and down. The hand grip part can not swing, but also to prevent the rear handle to the upturned, that can not drill the tail above the horizontal centerline Gao Qiao Yu wheel, otherwise it would blunt edge