The die bore is connected to a suction device, and the notching cutter is formed with {HEAD ~ an air hole} which opens to the atmospheric air and is communicated with {TAIL ~ the die bore} 
The die bore is connected to a suction device , and the notching cutter is formed with { HEAD ~ an air hole } which opens to the atmospheric air and is communicated with { TAIL ~ the die bore }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL