Specifications: Name: Sleeve Adapter Surface Treatment: Black phosphating Material: Chrome-vanadium alloy steel Application: Suitable for use in auto repair shops, 4S shops, CNC machine tools, construction sites, and most pneumatic scenes and power tools. Weight: 3/8" hole 1/4" head: about 18g 1/4" hole 3/8" head: about 18g 3/8" hole 1/2" head: about 43g 1/2" hole 3/8" head: about 47g 3/4" hole 2/1" head: about 253g 1/2" hole 3/4" head: about 136g Packing List: Sleeve x6 Toolbox x1.
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