Former In inch
Size Weight
1/4"0.08kg
5/16"0.09kg
3/8"0.09kg
1/2"0.13kg
5/8"0.145kg
3/4"0.19kg
7/8"0.21kg
Former in metric
Size Weight
10mm 0.2kg
12mm 0.24kg
14mm 0.3kg
15mm 0.3kg
16mm 0.3kg
18mm 0.38kg
20mm 0.41kg
22mm 0.42kg