The Gibraltar 5/16" Diam, 1-1/4" Usable Length, T Handle, Quick Release Pin is a high-quality fastening tool made of 17-4 stainless steel. This pin features a quick release mechanism for easy installation and removal, making it ideal for use in CNC machining, metalworking, and manufacturing. The T handle design provides a comfortable grip for handling, while the precision dimensions ensure secure and reliable workholding for your projects.