BECAUSE THE THREADED CYLINDER IS HELD FROM BEHIND WITH MACHINE SCREWS, THERE IS NO INTERRUPTION OF THE CYLINDRICAL SURFACE. THIS PROVIDES A SMOOTH, CLEAN WORKING SURFACE.

THESE HARDENED AND DIMENSIONALLY STABLE STAINLESS STEEL CYLINDERS ARE PRECISION GROUND AND MACHINE LAPPED TO PROVIDE EXCELLENT CYLINDRICITY WITH CLOSE DIMENSIONAL TOLERANCE.

THE HIGHLY REGULAR, LOW MICRO INCH SURFACE TEXTURE GENERATED BY THE MACHINE LAPPING LEADS TO LOW HYSTERESIS AND EXCELLENT REPEATABILITY.

TWO PARALLEL MOUNTED CYLINDERS, HELD IN PLACE BY MACHINE SCREWS FORM A VERY HIGH QUALITY SUBSTITUTE FOR THE HARD-TO-MANUFACTURE VEE GROOVE.