Useful for laying out and scribing circles beyond the capacity of ordinary dividers. Clamping device firmly holds points, which can be replaced with a pencil. The heads will accommodate any size beam from 19 to 38mm (3/4 - 1 1/2 Inch) in width. Beam is not supplied.
2 Trammel heads, 2 small points (150mm / 6 Inch)
