Preferably the blade is urged against the web with a force not exceeding 0.20 kgf per {HEAD ~ centimeter width} of {TAIL ~ web} 
Preferably the blade is urged against the web with a force not exceeding 0.20 kgf per { HEAD ~ centimeter width } of { TAIL ~ web }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL