The OX PRO 375-600mm SPEEDFRAME is a next-gen extendable measuring tool designed for precise point-to-point measuring. The patented twin-rail extension smoothly extends from 375mm to 600mm with no risk of tipping or tilting. The SPEEDFRAME features an integrated scale window, two vials, built-in scribing edge, and anodised aluminium profile. Delivers unmatched measuring precision for framing, carpentry, cabinetry, pipe and cable runs, bricklaying, and much more.