CLOSED WRENCH

TIGHTEN A NUT…Geekey features a closed wrench combining both Metric and Imperial sizes into one. The Imperial side fits 1/8, 3/16, 1/4, 5/16, 3/8, and 7/16 inch hex sizes. The Metric side fits M8 (13mm), M6 (10mm), M5 (8mm), M4 (7mm), M3.5 (6mm), and M2 (4mm) hex sizes. With this design approach, the parallel fit won’t destroy the hex head shape (Note: 13mm also fits 1/2 inch).