M-119  Sink&Step Drills for Screw Thread-180 degrees  沉頭鑽頭180˚- 180度

-台灣製蘇氏鑽頭

‧ 依據一般螺絲及六角螺絲專用之沉頭孔作業而設計的鑽頭。

‧ 原需兩次加工作業，縮為一次完成，同心度佳。

l          Specially designed drills that are suitable for drilling sink holes for general screws and scoket head cap screw.

l          Allow for two machining processes accomplished by one process, and provide superior concentricity.