Rosewood Handle Smooth 35 Degree Radius Bend in Blade Best Size for Steel Sash Work CRL Russell 1-5/8 Inch Stiff Bent Putty Knife features a rosewood handle riveted to the 35 degree angle bent blade. the 1-5/8 inch (41 millimeters) width is the best size for steel sash work. Blade Width: 1-5/8 in (41 mm)