When you need to remove a fastener, the Proto J4990-6M 6 mm Tip Socket Bit is the tool for the job. It is compatible with 3/8 in. drive sockets and has a hexagonal design. The socket bit is 2 23/32 in. long and has a 3/8 in. drive size and 6 mm tip size. With its hexagonal design, it fits securely into your socket set or wrench handle. The alloy steel construction of this socket bit makes it durable enough to withstand repeated use over time. Equip yourself with the Proto J4990-6M 6 mm Tip Socket Bit so you can get on with your work without any interruptions.