The MKF2 is a specialized pentagonal wrench designed for opening water meter pit covers, water meter box lids, and valve pit covers. Measuring 5.5 x 5.5 x 0.5 inches, this wrench is compatible with both standard pentagonal bolts found on water utility infrastructure and the larger pentagonal bolts on water meter boxes. It features a durable, rust-resistant metal construction with a one-piece design and weighs 1.08 pounds.