12" INSPECTION BLOCK MASTER LEVEL WITH 2 VIALS (4901-0092)

12" Inspection Block Master Level With 2 Vials For accurately checking the work of machinists and toolmakers setting up machinery and other work that requires extreme leveling accuracy. Feature a cross and main vial that is easiily adjustable. Heat insulated and are resistant to shock. 0.0005" graduation sensitivity per 10". Shipping Weight: 6 lbs