Gauge / Metric (d)dkkDrive
#2 (2.2)4.20-3.901.80-1.55#1
#4 (2.9)5.60-5.302.20-1.95#1
#6 (3.5)6.90-6.542.60-2.35#2
#7 (3.9)7.50-7.142.80-2.55#2
#8 (4.2)8.20-7.843.05-2.75#2
#10 (4.8)9.50-9.143.55-3.25#2
#12 (5.5)10.80-10.373.95-3.65#3
#14 (6.3)12.50-12.074.55-4.25#3
Advised Length in InchesActual Length in Millimetres
3/16"4.5
1/4"6.5
5/16"8.0
3/8"9.5
1/2"13
5/8"16
3/4"19
7/8"22
1"25
1.1/4"32
1.1/2"38
1.3/4"45
2"50
2.1/4"55
2.1/2"60
2.3/4"70
3"80
3.1/2"90
4"100