1:19

1:20

1:50

1:100

Self piercing

Thread cutting

Thread forming

Hammer driven screw

In coach building work

Heavy duty assembly work

Loosen and tighten without wrench

Provide decorative appearance

Snap gauge

Thread ring gauge

Thread plug gauge

Centre gauge

Set No: 1, 2

Set No: 1, 2, 3, 4

Set No: 1, 2, 3, 4, 5

Set No: 1, 2, 3, 4, 5, 6