Proto Single 3/8" Drive 12mm Impact Deep Metric Socket, Steel, Black Oxide Finish, Shop-Ready Socket for Machinery Maintenance and Job Sites, Must-Have Tool for Mechanics, DIYers, and Pros

Proto Single 3/8" Drive 12mm Impact Deep Metric Socket
✔️ single socket, 3/8" (9.52 mm) drive, 12 mm (0.472"), deep, metric

This single Proto 3/8" drive 12mm impact deep metric socket is a must-have for machinery maintenance, job sites, and everyday repairs. It gives you the grip and fit you need to work fast and avoid stripped fasteners.

✅ Pack size: 1 socket
✅ Drive size: 3/8" (9.52 mm)
✅ Size: 12 mm (0.472")
✅ Measurement system: metric
✅ Depth: deep
✅ Impact rated for air and cordless impact tools
✅ Material: steel
✅ Finish: black oxide for rust resistance
✅ Brand: Proto
✅ Great for machinery maintenance and job sites

💡 What's the difference between 6-point and 12-point sockets?
Point count changes how the socket grabs a nut or bolt head.

• 6-point sockets grip the flat sides for max torque and less rounding
• 12-point sockets are easier to slip on when swing room is tight
• Go 6-point for rusty, stubborn, or high-torque fasteners
• 12-point is handy for double-hex bolts on some engines and machines