Johnson Level & Tool 406EM-S Heavy Duty Professional Inch/Metric Stainless Steel Combination Square, 6" Stainless steel blade with permanently etched graduations 1/8&quot;, 1/16&quot;, 1/32&quot;, mm Heavy duty cast zinc head with black, chip-resistant e-coating finish Auto-lock blade assembly CNC machined square head for greater accuracy Hardened, screw-in scriber won't fall out 1 Year Warranty: Johnson Level warrants this product against defects in material and workmanship for one year after the confirmed purchase date. At its option, the company will replace or repair the product if it fails under normal use.