Made of steel with black oxide finish that resists rust and corrosion. Easily converts for either external or internal use on snap rings. Push-button feature allows for effortless change of ring, hex shape locking guides, spring loaded, broached jaws for tip control and stability, ergonomic anti-slip air pocket grips for comfort. Pliers fit internal ring sizes 1/4 through 1 in (6.4 through 25.4 mm) and external ring sizes 1/8 through 1 in (3.2 through 25.4 mm). Includes five pairs of color-coded tips in sizes 0.023 straight, 0.036 and 0.047 straight and 90 deg. Hex stock size of tips 0.092 in.