Features and Benefits:•BLADE-LOCK™ for fast adjustment and secure hold•Precision machined working surfaces•e-Band™ Vial•Rational head dimensions•Cast zinc head•Stainless steel blade•Scriber•High visibility markings•Made in the USA with global materials•Limited Lifetime WarrantyThe Empire® 6 in. True Blue® combination square (E255) has precision machined working surfaces and a head with rational dimensions for a quick check of common measurements. The square has the BLADE-LOCK™ self-aligning drawbolt allowing quick adjustments with a secure hold. The high-visibility e-Band™ vial allows easy level checks. The 6 in. etched stainless steel blade will not fade over time and has high-visibility markings. The Combo square also has Onboard storage for a hardened scriber.