... and drilling unit head, can control depth of holes, with function of drilling blind hole, reaming, chamfer angle. ... . Product Basic Parameter: ModelPZ2010PZ2010APZ2012PZ2012APower head1212Servo systemPLCCNCPLCCNCMax size of work pieceL×W (mm)One piece2000×10002000×1200two ... processing for thinner steel boardNumber of tank for champing12Max. diameter of drillingφ50mmRange of spindle rotation speed(r/min ...