【建筑】旋转钻头（旋转钻孔头），深钻rotary drill bit (rotary boring head) deep drilling
金刚石钻diamond drill
内外加厚钻杆internal-external upset drill pipe【油气】
金刚石钻孔机Diamond Core Drill Machine
埋头钻countersink【机】;countersink drill【机】
车装钻机truck-mounted drill
钻机drill machine
电钻车electric drill car