A unique device to test concentricity or paralellism in Glass bottles. PRODUCT OVERVIEW: This benchtop fixture was designed to give accurate repeatable concentricity results. PRODUCT FEATURES: Two unique features ensure consistent results across all operators using this fixture. Rather than the traditional 'V' block system SOMEX use 3 large diameter rollers to ensure the base of the bottle is held firmly and rotates easily. Another unique feature is a pivot arm which engages the top of the bottle with a downward force, this feature increases the accuracy and repeatability of the test. ADVANTAGES: Repeatability or results across all operators. Accomodates up to 1L Glass bottles.