【Innovative 8 Size in 1 Wrench】 SAE 5/16“ 3/8“ 7/16“ 1/2“ 9/16“ 5/8“ 11/16“ 3/4“ ratchet with 12-point socket. Deliver excellent access and clearance without sacrificing strength. Fit perfectly on nuts and bolts of the same size, no slop and slippage. 【Convenient Design】Easy to choose and change the size you need by pushing the inner socket. Works with a wide range of sizes and can be easily moved from job to job. 【Easy Operation & Durability】Two way design and double-ratchet for clockwise and counterclockwise direction. 90 tooth ratcheting box end needs a minimal 4° to move fasteners. Made from chrome vanadium alloyed steel to withstand heavy torque, also with chrome plated, heat-treated and mirror polished for corrosion-resistant and long service life under normal use. 【Reversible & Smooth Profile】Box ends feature an off-corner loading design that grips fast and reduces fastener rounding. Unbroken surface allows more torque to be applied comfortably. Ideal for mechanics, motor cycle repairs, DIY, engine repair and other applications 【Original Patented】 Designed and manufactured in Taiwan with premium quality. Please identify FIRSTINFO 8 in 1 Ratchet Wrench with a patent authentication. We provide you this quality assurance tool with 12+18 months after-sales warranty (18 months warranty by the register) support. Help you to achieve a satisfactory shopping experience.