Description Imperial inch size –  5/32″  The ultimate tool for Flipper Rebuilds on most of your Pinball Machines Fits all Modern Stern, Bally/Williams JJP and others who use flipper kits with 5/32″ Imperial Hex on the coil stop Our company also rent out machines and we use this tool every time when doing flipper rebuild and maintenance High End tool that last you a lifetime Chromium Vanadium Steel Made in Japan SPF reference SPF 110-001-FlipperRebuildKey