RME 1003 Precision 2" Roll over Bar 35.5" long. The plate mounting holes centers are 21" apart. It is made from 1045 Medium Carbon Steel. It is a precision 2" bar that is turned ground and polished. Use it for resurfacing cylinder heads and engine blocks on resurfacing machines and Bridgeport type milling machines. The price includes packaging and shipping to your shop in the lower 48 States.