Refrence No: 21.18
The mandrels consist of:-
Square mandrel with 12 rounded steps ranging from 6 x 6 to 25 x 25mm
Triangle mandrel with 10 steps ranging from 5 x 5 x 5 to 31 x 31 x 31mm
Round mandrel with 12 steps ranging from 6.5mm to 27.5mm diameter
