Draper combination square with centre head and protractor draper 34704 matt black metal stock with machined faces centre reversible protractor and brass adjusting screws protractor incorporates a spirit level and is clearly graduated 0 176 180 176 in both directions stock incorporates spirit level and scriber aluminium blade is graduated mm and 1 16 one side and 1 2mm and 1 32 on the other display packed draper 34704 combination square with centre head and protractor