WE OFFER THE 2 INCH BY 2 INCH UNIVERSAL MOUNTING BLOCK AS AN ACCESSORY FOR USE WITH THE PROBE CALIBRATION SPHERE HARDWARE._x000D_
_x000D_ THE FOUR THREADED TIE DOWN HOLES ARE M10-1.5 THREAD. A THROUGH MOUNTING HOLE WITH CLEARANCE FOR 10MM OR 3/8 INCH TIE DOWN BOLT IS PROVIDED. THIS APPROACH TO TIE DOWN ALLOWS THE TWO INCH SQUARE BY TWO INCH HIGH BLOCK TO BE CLAMPED DOWN IN ANY ANGULAR POSITION._x000D_
_x000D_ THE SIMPLEST APPLICATION IS TO USE IT AS A 2 INCH RISER TO HOLD ANY OF OUR PROBE CALIBRATION SPHERES. THE 2" BY 2" BLOCK CAN BE USED TO MOUNT ANY OF OUR PROBE CALIBRATION SPHERES AT RIGHT ANGLES TO THE C.M.M. TABLE. MOUNTING UP TO FIVE OF OUR STANDARD PROBE CALIBRATION SPHERES CREATES AN EXCELLENT STAR PROBE CALIBRATION DEVICE. LEAVING IT MOUNTED ON THE CMM TABLE WITH SEVERAL OF THE CALIBRATION SPHERES ATTACHED PROVIDES A MONUMENT THAT WILL QUICKLY PROVIDE PROOF OF PERFORMANCE AS AN INTERIM EVALUATION OF YOUR C.M.M._x000D_
_x000D_ FIVE SPHERE CALIBRATION SPHERES MOUNTED ON THE 2" BY 2" BLOCK, CREATES TEN INTER-SPHERE DIMENSIONS THAT ARE, IN EFFECT, TEN UNIQUE LENGTH BALL BARS._x000D_
_x000D_ THE ASSEMBLY OF THESE 5 DEVICES IS A "PRETZEL" THAT EXERCISES EVERY FUNCTION OF YOUR COORDINATE MEASURING MACHINE._x000D_
_x000D_ HAVING THE SEVERAL EXTRA PROBE CALIBRATION SPHERES AVAILABLE WILL PROVIDE YOU WITH THE IN HOUSE HARDWARE TO PERFORM FREQUENT TEMPERATURE DRIFT EVALUATIONS._x000D_
_x000D_ OUR ENTIRE FAMILY OF PROBE CALIBRATION HARDWARE IS DESIGNED TO BE COMPATIBLE WITH THE 2" BY 2" BLOCKS.