48 Pcs 16 different sizes for all 60 degree threads

●         Measuring all threads from 3 to 48 threads per inch and all metric

●         from 0.5mm to 6mm pitch.

●         3 wire method is the best method pf measuring.

●         External threads.

●         Wire are fitted in a plastic case stamped with sizes.

●         Laminated chart completed from U.S. standard.

●         Hand book H28. Give proper sizes & measurement over wires