Surface Plate

Starrett granite master squares are suitable for accurately measuring the X-Y-Z axes on CNC machine tools and measuring equipment. These units are made of pink granite with five-face configuration for maximum resistance to wear and deflection under load. They are lapped to a fine microinch finish for preventing tool drag and are well suited for inspection and layout applications and for gaging small components along with checking the squareness and parallelism of any machine. These granite master squares are available in AA (Laboratory) and A (Inspection) grades of accuracy, ideal for precision operations in temperature gaging rooms and metrology departments or quality control applications, respectively.

Starrett granite V-blocks are designed for holding and supporting cylindrical pieces during inspection or manufacturing applications. These units have five finished faces with a 90 degree V shape groove on top for proper positioning of round workpieces. They are made of pink granite offering maximum wear resistance, durability, corrosion resistance and high tolerance to temperature fluctuations. Choose from a broad range of these granite V-blocks, available in 6, 15, 48, 160 and 380 lb load capacities.

Starrett paired granite parallels are designed for setting up workpieces on surface plates and machine tables and elevating work pieces above the surface plate for quick and easy inspection of critical components. These units feature pink granite for maximum wear resistance, durability, corrosion resistance and high tolerance to temperature fluctuations. They are available in AA Laboratory and A Inspection grade variants for accuracy and precision.

Starrett Crystal Pink Granite angle plates are used for precise inspection, layout, gauging and marking applications. These quartz-loaded plates provide excellent wear resistance, stability, vibration damping, non-corrosive and equally distributed load-bearing capabilities. They are available in laboratory grade (AA) and inspection grade (A) versions for high precision operations in any temperature-controlled ambience. These units feature 2 or more surfaces with a fine flat finish and also facilitate holding / clamping the workpiece in a vertical position. Choose from a wide range of these granite angle plates available in thicknesses ranging from 100 to 300mm on Raptor Supplies.

Granite tri squares from Starrett offer an economical way to check X, Y and Z axis alignments on CNCs and CMMs for precision layout, inspection and tooling setup. These Grade AA Laboratory and A inspection tri-squares are suitable for quality control. They are available in thickness ranging from 75 to 150 mm. Raptor Supplies offers a wide range of Starrett granite squares, also used for direct checking of squareness and straightness.