Johnson Level 420EM Professional Inch/Metric Combination Square 16

Cast zinc head with computer machined gauging edges for greater accuracy. Acrylic yellow barrel vial. Hardened removable scriber steel blade with protective anti rust coating is permanently stamped in 1/8 1/32 and metric graduations. Size: 16 ; Auto-Lock blade assembly; Steel blade with permanently etched graduations 1/8 1/16 1/32 mm; Heavy duty cast zinc head with black chip-resistant e-coating finish; Hardened screw-in scriber won t fall out. Durable acrylic level vial.;