Klein Tools 10 in pump pliers feature a secure tongue and groove design for a non-slip grip even when heavy pressure is applied. It has a tension-loaded joint to reduce handle wobble for sure gripping. Plastic-dipped handles provided added comfort and ease of identification. Quick adjust rivet allows one handed fast, easy adjustment of plier jaws 1-3/4 in maximum parallel jaw opening for a range of applications Smoothly adjusts between six machined tongue and groove jaw positions Secure tongue and groove design for non-slip grip even with heavy pressure Robust teeth for sure gripping action