98 Series Machinists Improved Levels, 6 in, 2 Vials

Have ground and graduated main vials

• The base of the levels features an involute groove running the length of the base
• With the cross test vial, it is possible to simultaneously level in both directions
• These vials are adjustable to a positive setting and are housed in a satin finished brass tube with a friction-fit closing cover to prevent breakage