Features:

 -Our nut and bolt checker set includes assortment of 44 male/female nut and bolt size checker gauges for measuring thread pitch. Use the detachable nut and bolt gauges to check, identify & verify nut and bolt size. Red gauges are metric, blue gauges are inches.

- Unlike a wall mounted nut and bolt measurer or stationary nut and bolt board, each bolt and nut identifier gauge featured in our kit can be removed & used to measure thread pitch in cramped or enclosed spaces. It is a practical tool for handymen, mechanics and users who need to figure out the sizes of bolt and nuts in a short time.

- An updated design based on the feedback of our customers, this new and improved nut and bolt head sizer is the ultimate inch and metric thread checker for plumbing, auto mechanics, HVAC, cabinet installations, appliance servicing, DIY home improvement, handywork and more

- Bolt thread checker gauge box can help users to check the sizes of nuts and bolts quickly. Start quickly indentifying and distinguishing thread thickness .

-Waterproof and wear-resistant PVC box makes it more convenient to store and carry.

Specification:

-Material: Aluminum 

-Size: See picture for details

-Quantity: 44pcs

Package Includes:

21pcs metric size

23pcs inch size

1pcs Carry Box