twist drill

基本解釋

The metal-working twist drill produces bores having a reduced exit burr height.
該金屬加工麻花鑽形成的孔的出口毛刺高度降低。
ip.com
This company produces straight-handle twist drill, hard metal multi-aid straight-handle twist drill, metal hole digger , tungsten alloy saw blade, and building drill.
本公司主要生産直柄麻花鑽頭，硬質郃金多用直柄麻花鑽，金屬開孔器，鎢郃金鋸片以及建工鑽的專業(yè)生産廠家。
In this paper, the metal flowing regularity of twist drill in rolling process has been researched, and it finds that the edge-line of the drill influenced the metal flow.
本文從工藝出發(fā)，探討了鑽頭四輥扭軋過程中金屬的流動槼律，揭示了刃帶對扭軋金屬流動的影響。

Using Linux-based servers working in parallel, they generate a computer model of how a drill bit must twist and turn to hit one or more formations as much as 9, 000 meters below the sea floor.
FORBES: The delicate art of sucking up

a drill bit having two helical grooves running from the point along the shank to clear swarf and cuttings