- Eliminate toolbox clutter and save time. This complete socket tray set is designed to keep your tools organized and make the dedicated socket instantly findable. Sockets are not included with the holder. - Complete SAE and metric range. The set includes 176 posts with one standard and one deep post for each size. The 1/2 inch organizer offers more extensive 1/2 inch socket storage than most sets, with room for 26mm and 1-3/16 inch shallow and deep sockets. 1/4 inch drive sizes include metric 4mm to 15mm and SAE 1/8 inch to 5/8 inch. 3/8 inch drive sizes include metric 6mm to 20mm and SAE 1/4 inch to 1 inch. 1/2 inch drive sizes include metric 10mm to 27mm and SAE 3/8 inch to 1-1/4 inch. For a complete list of included posts, reference the images for a comprehensive table of sizes. - Fast to recognize. Each post is marked with clear socket sizes for instant identification. Red SAE and black Metric sockets on the trays help distinguish when mixed. - Tight and tidy. Maximum peg height is 3.9 inches, allowing fit in many tool drawer organizers. The trays also include a hole for mounting on a workstation or wall. - Use scenarios. Automotive repair and maintenance tasks benefit from quick socket access and organized layouts in the toolbox. Bike or small engine work benefits from rapid size spotting and organized storage. A home or mobile shop can mount the trays on a wall or workstation for a portable, tidy solution.