Driving keys for stub arbors (modular system)

Reference: 303 01 ...

d1 b h l   COD.
16 4 4 16   303 01 04 04 16
22 6 6 20   303 01 06 06 20
27 7 7 22   303 01 07 07 22
32 8 7 25   303 01 08 07 25
40 10 8 28   303 01 10 08 28