Required chip groove and special features:
The screw tap, the lower part of the spiral groove can tap to blind, not cutting residue, easy to eat into the bottom, has good machinability. It is suitable for cutting material with continuous curling, blind hole and inner wall with uranium cutting groove;
The end taps, edge groove, cutting out from the front, no cutting jams, bending strength, cutting performance is sharp. It is suitable for cutting continuous curling material, through hole, inner wall with uranium cutting hole and high speed machining;
Extrusion thread tapping uses plastic principle to process internal thread, no cutting discharge, internal thread precision is very stable, and bending strength is large. It is suitable for use in materials with good extensibility, through hole and blind hole;
The straight slot taps straight groove, edge strength, cutting cone length, easy grinding easily applicable in processing materials with high hardness, easy to cause the cutting tool wear materials, powder materials, tapping short holes, blind hole depth.