1. Key points of grooving: radial rake angle, core thickness, helix angle, groove length, cylindrical toughness bandwidth, grinding wheel fillet, groove type requirements, etc.

2. Key points of the circumferential edge: radial relief angle, blade diameter, blade length, circumferential blade width, radial jump, inverted taper

3. Key points of the end edge: end rake angle, end relief angle, end kernel width, edge inclination, end jump

4. Key points of backlash: chisel edge, over-center amount, backlash angle, tooth expansion and exit, bottom corner arc, fusion depth, fusion angle, wheel selection, ball head slotting rake face length

5. Other key points: ball head, arc, taper, chamfer, incision, height removal, forming contour, passivation, appearance, etc.