Cross Test Levels 136 Cross Test Level 2-3/4 X 2-3/4"/70 X 70MM Similar to our 134 level, the 136 has two vials at right angles which permit leveling in both directions without moving the level from the work.The level is light and compact, with an attractive black wrinkle finish and a ground reference surface. Made from cast iron. 134 Cross Test Level and Plumb 2 X 3"/50 X 75MM This is an especially useful little level, invaluable for plumbing, approximate squaring and leveling work. Made from brass with nickel finish, all working surfaces are flat and true. The level has two vials at right angles for cross test leveling without moving the tool and a plumb level at the top. An accurate, well-made and reliable tool, it is also very light and compact and can be easily carried in the pocket. 134 Cross Test Level Cat. No. EDP Size Description in mm 134 50569 2 x 3 50 x 75 With cross test vials and plumb vial 136 Cross Test Level Cat. No. EDP Size Description in mm 136 50572 2-3/4 x 2-3/4 70 x 70 With cross test vials 134 136 373 starrett.com M achinists ' L evels