Worldwide 17 Surfacemaster 11" Professional Finishing Trowel for Plaster A lightweight, professional finishing trowel truly famous for its finish for 50 years 280mm x 120mm (11" x 4 3/4") Hardened & tempered spring steel blade Diecast aluminium tang secured by electronically welded rivets Blade is fully tensioned to give a flat, smooth finish The original Surfacemaster trowel has been produced since 1957 using the finest top quality steel & diecast aluminium tang.