1pc Z2 type expansion/Z21 expansion/Z3 expansion connection/connecting sleeve keyless shaft/expansion sleeve
1: Z2 overall quenching and tempering 18 * 47 * 20
2: Z2 overall quenching and tempering 19 * 47 * 20
3: Z2 overall quenching and tempering 20 * 47 * 20
4: Z2 overall quenching and tempering 22 * 47 * 20
5: Z2 overall quenching and tempering 24 * 50 * 20
6: Z2 overall quenching and tempering 25 * 50 * 20
7: Z2 overall quenching and tempering 28 * 55 * 20
8: Z2 overall quenching and tempering 30 * 55 * 20
9: Z2 overall quenching and tempering 32 * 60 * 20
10: Z2 overall quenching and tempering 35 * 60 * 20
11: Z2 overall quenching and tempering 38 * 65 * 20
12: Z2 overall quenching and tempering 40 * 65 * 20
13: Z3 overall quenching and tempering 18 * 47 * 31
14: Z3 overall quenching and tempering 19 * 47 * 31
15: Z3 overall quenching and tempering 20 * 47 * 31
16: Z3 overall quenching and tempering 22 * 47 * 31
17: Z3 overall quenching and tempering 24 * 50 * 31
18: Z3 overall quenching and tempering 25 * 50 * 31
19: Z3 overall quenching and tempering 28 * 55 * 31
20: Z3 overall quenching and tempering 30 * 55 * 31
21: Z3 overall quenching and tempering 32 * 60 * 31
22:Z3 overall quenching and tempering 35 * 60 * 31
DIY Supplies : Electrical
Color classification : Z2 overall tempering and tempering 18 * 47 * 20, Z2 overall tempering