11 Ago BROWN&SHARPE #542 VINTAGE 4-1/2″ MASTER 2B SQUARE MACHINIST TOOLMAKER USED CLEAN
The beams and blades are hardened, ground, and lapped to insure parallelism and straightness. The beam is grooved at the inner corner for clearance of burr or dirt. 4-1/2" blade and a 3-1/2" beam on this square no. 542....