ChatAngle(TM) Eazypower Corp 81395 Rounded Nut and Screw Extractor-#16 SCREW & NUT REMOVER Fits 21/32" - 0.665"(16.95mm) Screw Head Diameters Patented one way screw remover/installer is eazy as 1, 2, 3 1-15/16" Length Power Bit