Specification: Base Material: Aluminum Cranks and column material: carbon steel Chuck diameter: Max. 43mm (1.7») Drilling depth: Max. 60mm (2.4») Total height: 400mm (15.7») Shaft diameter: 25mm (1») Bottom: 150 * 150mm (6» * 6») Package includes: 1 x Base 1 x Column bar 1 x Rocker 1 x Lower limit Fixed sleeve 2 x Adjustable plastic fixed sleeves 1 x Hex wrench 5mm