8" x 8" Precision Frame Spirit Level Sensitivity 0.0002 Per 10 inch

High Sensitivity 0.0002 per 10 Inch, accurately display plane angle Reading should be taken after the bubble ceases to move, usually 15 seconds after the level is placed on the surface It should be kept away from heat sources, temperature changes can effect the operation of the level Used to check the setting of the horizontal and vertical slide ways of machine tools ncludes 2 prismatic and 2 flat sides along with an insulating handle, flat side for checking smooth surfaces and notched side for secure seating on cylindrical surface