RARE - PIONEER 4" Stainless Steel Pocket Rule is a precision tool used by machinists for measuring and inspection tasks. Made in the United States by the renowned brand Pioneer, this rule is durable and reliable for use in a variety of industrial settings. With its stainless steel construction, it will withstand frequent use and provide accurate measurements for centuries to come. Perfect for professionals in the CNC, metalworking, and manufacturing industries, this pocket rule is a valuable tool for ensuring quality control in your work.