Identify nut and bolt sizes quickly with this 66-piece detachable thread checker kit . The set includes 33 SAE standard sizes and 33 metric sizes , each stored in a compact foam organizer for easy selection and storage. Features: 66-piece detachable thread checker set 33 SAE inch sizes and 33 metric sizes Blue SAE gauges and red metric gauges Laser-engraved size markings Lightweight aluminum construction Foam storage box keeps gauges organized Useful for tight spaces and hard-to-reach areas Helps identify, match, and sort mixed nuts and bolts Great for mechanics, electricians, engineers, garages, and DIY projects Includes: 33 SAE thread gauges 33 metric thread gauges Foam storage box with size markings
