TEKTON WCB95901 1/4 3/4 in., 6 19 mm Stubby and Standard Length Combination Wrench Set with Modular Slotted Organizer (50-Piece)The TEKTON 50-pc. Combination Wrench Set is a complete inch and metric set with every stubby and standard length size from 1/4 inch to 3/4 inch, and 6 mm to 19 mm. Open ends are angled 15 and box ends are designed to grip flat sides of fastener heads, not corners, to prevent round-off. Set comes with Modular Slotted Organizers, allowing you to customize your wrench organization system.