Compact and versatile. Rugged enamelled cast iron base. Rustproof chrome plated column at right angle to base. Hardened and precision ground round serrated anvil. Provided with fine adjustment knob for zero setting. Suitable for all dial gages including 3/8" and 5/16" dia. stem & lug back. Base dimension: 6" x 4" (150 x 100mm). Column diameter: 1" (25.4mm). Anvil Size: 23/8" (60mm), Throat Depth: 3" (75mm) , Measuring Range: 5" (125mm).