星空传媒天美传媒有限公司|星空mv梦幻mv天美mv|星空mv天美mv梦幻mv|星空天美梦幻mv视频|麻花星空mv天美大象You can use the magnetic drill when you can not use drill press and electric hand drill to drill huge steel workpieces or in field operation.They are convenient and small,and can reducing work force and improve the machining accuracy and effiency.velocity-adjustable magnetic drill is characteristic of constant power,over-loading protection and infinitely viable speed transmission,etc.