10" (250mm) Engineers Tri Square Set Square Right Angle Straight Edge Steel SIL121

12" (300mm) Engineers Tri Square Set Square Right Angle Straight Edge Steel SIL123

12" (300mm) Hardwood Try Engineer Square Precision Tri Set Square Right Angle

12" Aluminium Speed Square Black Measuring Rafter Roofing Triangle Joinery TE939

12"x8" Rafter Square Steel Roofing Framing Metric Imperial Rule Pitch Carpenter

24" x 16" Aluminium Set Speed Square Rafter Metric Imperial Roofing Rule TE841

3" (75mm) Engineers Tri Square Set Square Right Angle Straight Edge Steel Try SIL115

4" (100mm) Engineers Square / Set Square / Right Angle / Straight Edge TE423

4" (100mm) Engineers Tri Square Set Square Right Angle Straight Edge Steel SIL116

450mm Engineers Square Steel Set Framing Square Right Angle 90 Degree Sil146

6" (150mm) Engineers Tri Square Set Square Right Angle Straight Edge Steel Try SIL117

6" / 150mm Engineers Square Adjustable Combination Set Square + Spirit Level

6" Aluminium Speed Square Measuring Rafter Roofing Triangle Joinery Guide

600mm Engineers Combination Try Square Set Right Angle Spirit Level 24inch TE703

8" (200mm) Engineers Tri Square Set Square Right Angle Straight Edge Steel SIL120

Engineer Square 12" 305mm Solid Steel Precision Tri Try Set Square TE715

Engineer Square 6" 150mm Solid Steel Precision Tri Try Set Square TE709

Engineer Square 8" 200mm Solid Steel Precision Tri Try Set Square TE699

Engineers Square 6" 150mm Adjustable Combination Set Square + Level TE256