Model HJ-99 Max. drill height 25mm Drill diameter 1-10mm Column diameter 32mm Voltage 220V,50/60Hz Input Power 240W Output power 340W Weight 5.8kg Packing qty 4pcs/CTN Speed 0-16,000(r/min)Adjustable Gross weight 6kg If your work is for a long time production, it is recommended to buy this big power mini drill press. The motor will not easily heated for a long time, it's very durable to use. Big power, high precision.