Specification:This is a new adjustable aluminum drill stand that is perfect for shops or families.Double holes are more suitable for your needs than single holes. The plug-in rig is ideal for keeping the drill bit stable during use and more precise than handheld operation.(Specific deviations, and the concentricity of the used electric drill, as well as personal operation technology, have a great relationship.)The electric drill has high concentricity and small vibration, which can reduce the deviation. Drilling depths up to 60 mm, with solid struts and a sturdy base with slots for machine vise. Main working parameters:Shaft: 400mm/16inClamping: 38-42mm/1.5-1.7inSingle stroke: 0-60mm/0-2.4inSubstrate: aluminum alloy Detailed description:Electric grinder jaw range (35-38mm)/(1.4-1.5in)Electric drill jaw series (38-42mm)/(1.5-1.7in)Sorghum: 20mm/0.8inThe electric drill is equipped with a rubber sleeve for a firmer clamping and double holes.Bracket height fixing sleeve (designed with bracket height fixing sleeve, which can adjust different bracket height according to working height and drill length)The bottom of the aluminum alloy base (with desktop fixing screw holes, the operation is more convenient and safer, the bottom surface is designed with an expansion slot, which can be installed with a vise or a mold) Package Included:1 * double hole drill stand