SK PROFESSIONAL TOOLS 45524 3/8 in Drive Ball Hex Hex Ball Bit Socket Metric 4
Socket Bit, Insert Length 39/64 in, Replaceable Insert Yes, Metric, Tip Size 4 mm, Tip Style Ball Hex, Overall Length 2 21/32 in, Drive Size 3/8 in, Socket Depth Standard, For Screw Type Ball Hex, Alloy Steel