Adjustable steel props (acrows) are manufactured from an outer tube 60.3mm dia. and an inner tube of 48.3mm dia. The threaded portion is friction welded to the outer tube to produce a lighter weight acrow prop. The thickness of the outer tube is 3.6mm and the thickness of the inner tube is 3.2mm, high grade steel.
These Size 1 Props are adjustable from 1.7m to 2.9m
