08081000 Bolt thread pitch gauge. Whitworth threads 4-62

This MIB bolt thread pitch gauge is a vital tool for identifying Whitworth (BSW) threads, commonly found on pre-1970 British motorcycles and vintage custom projects. It features 28 blades covering a pitch range from 4 to 62, with a 55-degree thread profile. By providing positive identification of thread types, this gauge prevents the damage caused by using incorrect fasteners on classic components. MIB instruments are designed for accuracy and longevity, making this an indispensable addition to the toolkit of any mechanic working on older machinery or heritage-style builds. It is sold as a single gauge set.