Hand Tools

GIMYUAN 48 Thread Checker - 24 Standard & 24 Metric Nut and Bolt Thread Checker with 12 Drill Bit Gauge, Wall Mount Bolt Size Thread Identifier Board Upgraded Version: GIMYUAN 48 Thread Chekcer covers the 24 most common imperial threads and 24 metric threads (Metric: from 2mm x0.4 to 24mm x3.0; Imperial: from 4-40 Coarse to 1-12 FINE), and can also identify the O.D. of 8 imperial drill bits and 8... GIMYUAN 48 Thread Checker - 24 Standard & 24 Metric Nut and Bolt Thread Checker with 12 Drill Bit Gauge, Wall Mount Bolt Size Thread Identifier Board