The Empire 6 in. TRUE BLUE Combination Square (e255) features precision machined working surfaces and a head with rational dimensions for a quick check of common measurements. The square features the BLADE-LOCK self-aligning drawbolt which allows users to make quick adjustments with a secure hold. The high-visibility e-BAND Vial allows users to easily check level. The 6 in. etched stainless steel blade will not fade over time and features high-visibility markings. The combo square also features onboard storage for a hardened scriber.