R-138 Square O-Ring (ID: 2 1/8, CS 3/32, OD 2 5/16), 20PK

Extended spurs cut crisp, clean holes in thick stock effortlessly and each bit is forged and heat-treated to withstand rigorous use.

.

The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.

The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.

The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.. X1 Square O-Rings are used to block a path which may otherwise allow a liquid or a gas to escape.