Largest hole drill:12-50mm Largest twist drill:23mm Rated voltage:110-230 v Rated frequency:50/60 hz Rated input power:1500w No-load speed:0-680r/min Maxattraction:16500n Max travel:180mm Rotated axis taper:weldon shank 3/4" N.W:21.4kg Packing:wood carton, plastic carton