The Fisher FB285ME Combination Set is a versatile measuring instrument with matt black die cast stock, brass locking screw and polished steel blade with markings clearly etched on both sides Fitted with separate scriber. This tool can be used as a try and mitre square, depth gauge, steel rule or straight edge. Spirit level gives horizontal, plumb or 45 degree readings. Blade length 12in (300mm) graduated in 32nds, 16ths, and millimeters. Centre head and protractor ensures the accurate location and marking of the centre of circular objects. Protractor head can be turned through 360 degrees for measuring and constructing angles.