New Improved Precise Pro90 Ratchet 90-tooth gear delivers a 4° precision swing that offers improved mobility in tight work spaces Constructed from chrome vanadium steel with professional grade high-polish finish to ensure strength and durability Metric and SAE socket sizes are easy to identify with laser etched size call-outs and color-coded stripes to identify metric (blue) and SAE (red) measurements Color-coded to help identify metric (blue) and SAE (red) sockets and wrenches Nut and screwdriver handles are constructed of hard, durable plastic inlaid with rubber for a comfortable grip during use 4-drawer blow-molded tool chest keeps your tools organized and offers convenient storage and transportation Meets or exceeds ASME specifications Hassle-free lifetime guarantee Please see set content list below