Features:

Metric (mm) - 60°

6.0, 5.5, 5.0, 4.5, 4.0, 3.5.
3.0, 2.5, 2.0, 1.75, 1.5, 1.25.
1.0, 0.9, 0.8, 0.75, 0.7, 0.6.
0.5, 0.45, 0.4, 0.35, 0.3, 0.25.

Whitworth - 55°:

62G, 60G, 48G, 40G, 36G, 32G, 30G,
28G, 26G, 25G, 24G, 22G, 20G, 19G,
18G, 16G, 14G, 13G, 12G, 11G, 10G,
9G, 8G, 7G, 6G, 5G, 4 1/2 G, 4G

Application:

It is most useful for checking tool angle while cutting threads in metal turning lathes.
The angles on the thread cutting tool is checked on the V slots in the gauge.

Package Weight : 80 G / 2.82 Ounces
Package Dimensions (L*W*H) : 70*20*20 MM / 2.76*0.79*0.79 Inches

Package Include:

1 x Screw Gauge Set