The Marshalltown Tuck / Window Pointer is referred to as tuck pointer or joint filler. This trowel is forged in one piece and designed with high shank and lift. This tool is used to form joints between bricks for weatherproofing and to improve appearance. It has a resilient Durasoft® handle that provides a soft feel, reduces fatigue and offers excellent durability. It is available in a wide variety of widths.Marshalltown M504D Tuck / Window Pointer Size: 8 x 170mm (5/16 x 6 3/4in).