About This

• Measures all 60° threads
• Measures all threads from 3 to 48 threads per inch and all metric from 0.5mm to 6mm pitch
• Wires are fitted in a plastic case stamped with sizes
• Chart compiled from the U.S. Standard Handbook H.28. and gives proper sizes & measurements over wires
• Comes with 4 wire holders with 2 pair of holes each and each pair of holes is for different sizes of wire