#(grandparent)##(parent)#

5-Face Master Squares

Five-Face Granite Master Squares provide an excellent, economical way to check X, Y and Z axis alignment on CNCs and CMMs. They can also be used in the same way as a steel square for direct checking of squareness and straightness.

Products
Features
Specifications
Downloads



Contact Starrett

Products

    Dimensions

    Weight

    Accuracy Grade – EDP

    AA Laboratory
    .000025"/6" TIR (0.0006/150mm)

    A Inspection
    .000050"/6" TIR (0.0012/150mm)

    Length x Height x Thickness

    Inch

    mm

    Lb

    kg

    12 x 12 x 3

    300 x 300 x 75

    41

    19

    81919

    81920

    14 x 14 x 3

    350 x 350 x 75

    56

    25

    81922

    81923

    16 x 16 x 4

    400 x 400 x 100

    98

    44

    81925

    81926

    24 x 24 x 4

    600 x 600 x 100

    220

    100

    81931

    81932

    36 x 36 x 6

    900 x 900 x 150

    855

    388

    81933

    81934

Features

  • Five-Face Granite Master Squares are popular for accurately checking the X-Y-Z axes on CNC machine tools and coordinate measuring machines.
  • Lying in the horizontal position, the X and Y axes can be checked for 90° squareness. With the square in the vertical position, tracing along the vertical edge of the square can check the perpendicularity of the Z axis. By tracing along the top edge of the square while in the vertical position, it will check parallelism of the table in the X and Y axes.
  • Five-face master squares may also be used on any work that requires the checking of squareness or parallelism.
  • Master squares have five finished faces One large square face is finished flat and perpendicular to the four edges, which are parallel and perpendicular to one another.
  • Custom sizes can be quoted upon request.
  • Storage and Travel Cases are available at an additional charge.

Specifications

  • Grade AA Tolerance: .000025" per 6"
  • Grade A Tolerance: .000050" per 6"

Downloads

  • Tru-Stone 1,816.24 kb