Hex shaped locking guides firmly hold tips. Tough steel construction for durability and strength. Ergonomic anti-slip sealed air pocket grips for comfort. Spring loaded to speed the work. Black oxide finish rust and corrosion. Easily convert for either external or internal use on snap rings. Unique push-button feature allows for effortless change. Tool comes with heavy-duty cushion-grip handles to provide comfort and broached jaws for tip control and stability. Use pliers on most internal snap-rings 3/8 through 2" (9.5 through 50.8mm) and external snap rings 1/4 through 2" (6.4 through 50.8mm). Pliers include 5 pairs of color-coded tips in sizes 0.036, 0.047 straight and 90 degree and 0.070 straight. Hex stock size of tips .092". Replacement part: 3151-77 Point Kit (includes 2 each of 5 different sizes: 0.036, 0.047 straight and 90 and 0.070 straight)