Introducing Bolt Sizer:- Just take a photo of the bolt next to a coin and get the size of socket you need. Supported Currency——————American coinsAustralian coinsSingapore coinsMalaysian coinsUnited Kingdom coins Danish coinsSwedish coins-No more stripping off the heads of nuts and bolts or fumbling around trying to find a socket that fits. – Works with both english and metric hex head bolts (more bolt types coming soon)- Will give you the shaft size or the head size to aid in buying replacement bolts-The paid version ads thread pitch and shaft length!Note: Remember to setup your settings!