Remove and install heavy-duty internal snap rings from 2-7/16" to 3-1/2" in diameter and external snap rings from 1-1/2" to 4" in diameter. Points lock securely into the jaws. Screw-type design maintains jaw position during use. Overall length without tips: 9-1/2". Hex stock size of tips: .156"Pliers include 3 pairs of interchangeable points sizes: . 0.108" diameter, 15 degree angle;. 0.108" diameter, 45 degree angle;. 0.123" diameter, 45 degree angle The tips are designed to have a secure lock and maintain the positions while in use. These are made with strong quality and safety for a good performance!