Clamp assembly for Professional Carpenter s Combination Square (item #812) and Ultra Test Combination Sets (#MG-S278-4R). The clamp assembly is spring loaded to hold the protractor heads and body to the steel ruler.
Features & Benefits :
Specially designed for carpenters and thewoodworking trades
Machined and enameled cast iron head hasprecision level and scriber for producing rightand 45° angles
12" x 1" (305 x 26mm) steel blade isgraduated in 8ths, 16ths, and 32nds
Conforms to government specificationsGGG-S-656C