General description Sealey Double Ended Impact Socket Set features a unique design that addresses the issue of chromium plated caps on some wheel nuts, which can swell and become incompatible with standard whole size sockets. This set includes half sizes that ensure a secure fit for safe removal, making it an essential tool for any DIY or professional mechanic. Technical specifications Model No.: SX1820 Drive: 1/2" Sq Socket Sizes: 80mm Sockets - 18.5 x 19.5mm, 19 x 21mm, 21 x 21.5mm, 22 x 22.5mm Extension Length: 75mm (3") Finish: Black phosphate Other information