Starrett Square Head for Combination Squares
“This square head fits blades for all combination squares, combinaton sets and bevel protractors for size 12″”, 18″”, 24″”, 300mm and 600mm blades.”
Square head for combination squares, combination sets and bevel protractors
Interchangeable with different sized blades
Forged and hardened steel with smooth black enamel finish
Fits size 12″, 18″ and 24″ blades