Comparator Stand / Indicator Stand Features Include... Compact, sturdy design with strong 25mm dia column, 7" high Base & indicator arm are made from stabilized castings. Precision ground working surface. Parallel fine adjustment, 0.100" travel. Convenient rapid coarse setting. Clearance between base and indicator holder is 5 3/8". Measuring 3 1/4" x 3 1/4" Base dimensions: 4" x 5 3/4" x 1 1/2" Total Height: 8.5" Extremely versatile for quick setups with indicators or electronic comparators. Furnished with 2 bushings for 3/8" and 8mm indicator stems.