Connecting ease-of-use with jobsite safety is the AMI Hydraulic Pin Grab Excavator Coupler with five integrated safety features. From inside the cab, the operator can switch attachments quickly, easily and most importantly know it's locked on tightly. Safety starts on the AMI Hydraulic Pin Grab Excavator Coupler with clearly visible locks on both the front and rear pins and a cylinder lock which prevents movement. Before the operator is able to disconnect, the AMI Hydraulic Pin Grab Coupler requires 80 percent of full system pressure against the integrated lock-valve.