Master Precision Levels 199 Series – 3″, 1-5/8″, 50719

Description

• Master Precision Level, 15" (380 mm)
• Ground and graduated main vial of 10-second accuracy; one division equals 1/2 thousandth (0.0005) of an inch per foot, or 0.04 mm per meter
• Main vials have seven graduations on each side of the bubble
• Auxiliary level vial shows lateral position and assists in horizontal setting
• Level vials are positioned so breakage is reduced to a minimum
• Fool-proof adjustment to avoid tampering, once set
• Special alloy iron used to obtain freedom from thermal effects
• Castings are thoroughly seasoned and machined
• Reference surface is scraped
• Non-machined surfaces have a black wrinkle finish
• Insulation from handling by means of top plate of nonconductive material