Jash Precision Tools Ltd. Manufactures Cast Iron Universal Right Angles or Knee Angles. Jash Precision Tools Ltd. Offers Precision Surface Equipment, Tooling Aids, and Precision Measuring machines. The Cast Iron Universal Right Angles or Knee Angles are used for making fixtures as well as for checking squareness and parallelism of surfaces. All machined faces are square and parallel and job can be rotated in different planes that are square with respect to each other. The Cast Iron Universal Right Angles or Knee Angles are available in sizes ranging from 100 X 100 X 125 To 300 X 300 X 600 mm. The squareness of faces comes within 10 microns per 100 mm. The parallelism of faces ranges within 10 microns per 100 mm