Box joint design is known to provide a stronger joint that can increase leverage and offer a better grip on the work piece. This 10-inch pliers have a working capacity of up to 2-3/4 inches. The handle is designed to be "pinch-free" to protect your hand from painful blood blisters. Additionally, the handles have a textured coating that ensures a non-slip grip when applying turning torque to the tool. Alligator pliers. More output and comfort compared to conventional water pump pliers of the same length: offer 9 adjustment positioning for 30% more gripping capacity Good access to the workpiece due to slim size in the head and joint area Self-locking on pipes and nuts: no slipping on the workpiece and low handforce required Gripping surfaces with special hardened teeth, teeth hardness approx. 61 HRC: low wear and reliable gripping Box-joint design: high stability because of double guide