16
Different Drill Gauges: 3 - 4 - 5 - 6 - 8 - 10 - 12 - 14 - 1/8 - 3/16- 7/32 - 1/4 - 5/16 -3/8- 7/16 - 1/2.
Quick and Precision Identification: Nut and bolt thread checker is made of CNC-machined anodized aluminum alloy plate and hardness 304 stainless steel studs, ensuring maximum thread strength and ultimate precision. Identify any bolts and nuts in seconds, no more guessing size or using mismatched hardware.
Separate Dual-Board Design: The thread checker standard and metric is split two-piece design, easier to hold in one hand and identify threads anywhere and anytime. Compact design and space-saving. Features 4 hanging holes and 8 anti-slip silicone feet, suitable for hanging on the wall or using on the workbench.