Abstract: A universal angle V-block fixture enables machine operations to be performed on cylindrical work pieces at a variety of predetermined angles. The fixture includes two mirror symmetrical hepagonal blocks, each provided with a pair of V-grooves in opposed faces thereof. Each block has seven flat sides which intersect at various included angles. By positioning a cylindrical work piece in facing V-grooves of each block, the work piece may be oriented by turning the block to orient the longitudinal axis of the work piece at 0, 15, 30, 45, 60, and 90 degrees with respect to a horizontal reference. The V-groves in the opposed front and back faces of each block are formed of two different sizes for allowing a wide variety of different diameter work pieces to be clamped. The side faces of each block are provided with a central rectangular groove for providing an accurate flat surface for cooperation with work holding fixtures of various machine tools.