Starrett Blades for Combination Squares
“This blade will fit any Starrett head according to size for all combination squares, combination sets and bevel protractors. 12″”, 18″”, 24″” and 36″” and 300mm and 600mm sizes are interchangeable (except No. 33J and No. 8 combination squares).”
18″ satin chrome blade
Graduations in 8ths, 16ths, Quick Reading 32nds and 64ths
Approximately 1″ wide by 3/32″ thick
Interchangeable blade with other combination heads