Williams 50622 1/4-Inch and 3/8-Inch Drive Master Socket and Tool Set, 89-Piece,Snap-on Industrial Brand JH Williams,50622" /> 89-Piece set Professional quality, made of high grade chrome vanadium steel Sockets feature super torque lobular openings for greater turning power without deforming the fastener Packed in rugged high density polyethylene case Case is shock proof at both high and low temperatures