cutting bit

钻头

cut-back, cut-off, cut-out, cut-price (US cut-rate), cut...to the bone, cutaway, cutback, cute, cutely, cuteness, cuticle, cutlass, cutler, cutlery, cutlet, cutpurse, cutter, cutthroat, cutthroat razor, cutting, cutting-room, cuttingly, cuttlefish, cutworm, cv, cwm, cwt, cyanide, cybernetic, cybernetics, cyberspace, cyclamate, cyclamen, cycle, cyclic, cyclical, cyclically, cyclist, cyclone, cyclonic,