Description: it s applicated for the overhaul and reinforcement in railway post oil geology and architecture industry.Because this machine don t need the electrical power so it s high suitable for field underwater and working aloft. Parameters: model: ckj-21 applicated range 40-110 puncher diamter 13mm 15mm 17mm 19mm 21mm allowed thickness of the plate 10mm power 300kn size 14 *10 36*25cm weight 15kg item included: 148018 intsupermai manual mechanical punching machine hole punching tool
