Mitutoyo Surftest Manual Column Stand with Granite Base This stand is designed for use with Mitutoyo's SJ-210/310 & SJ-410 series of surface roughness testers. This column stand includes 9.8" / 250mm of vertical travel, allowing you to position your surface roughness tester at just the right location to take surface roughness measurements. Features include... 10" x 16" x 2.3" Granite Base 9.8" Vertical Adjustment Range Maximum traversing range in column Z-axis is 200mm. Built-in aluminum T-groove in granite base aligned with the center-line of drive unit when mounted. Column shaft is plating finish for smooth travel. Lead thread pitch 3 for efficient traverse up and down and high load capacity. Both Drive unit mounting adapters for SJ-210/310 (65GAA083) and SJ-410 (65GAA068) are included for versatility. Dimensions and Mass: Item Specification Up & Down Travel 250mm Granite Plate Flatness 8um Granit Plate Size (WxDxH) 400 x 250 x 60 mm Dimension (WxDxH) 400 x 250 x 556 mm Weight 20kg Granite Stand ONLY. Surface Roughness Tester NOT included.