Liquid Limit Device, Hand operated The apparatus consists of a brass cup, a crank and cam mechanism, mounted on a rubber base of a specified hardness. A brass pin having a knurled end for easy removal holds the brass cup. The height of fall of the cup can be adjusted by a horizontal lead screw. Supplied complete with: Grooving Tool Type 'A' and Gauging Block as per IS:9259, IS:2720 (Part-V). Fitted with a counter to register the numbers of drops of the cup.