12Pcs 1/4 Ratchet Wrench Set 40CR Dual-purpose Movable Fixed Head 72-tooth Auto Car Products Home Diy Repair Hand Tools Kit    Features:   【SIZE】Contains 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm and 19 mm   【High quality】Made of premium chromium-vanadium alloy steel, overall heat treatment with high hardness, good toughness and long service life.   【Easy to use】Precision ratchet 72-tooth gears, only 5 degrees working swing arc, convenient for barrier-free use in tight spaces   【Package】store the wrenches in the attached black plastic box when not use, which is convenient for storage and easy to carry.   Application: Vehicle repair, equipment assembly, machine maintence and engineering construction     Specification：   Surface Treatment : Nickel Plating   Material: 40CR   Wrench shape: dual-purpose wrench   Wrench head type: open   Format: Metric   Drive square head size (inch): 1/4   Overall length: 8-19 (mm)   Handle type: straight handle     PACKAGE includes:   Fixed head ratchet wrench*12   Toolbox*1   or   Active head ratchet wrench*12    Toolbox*1