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