Made from Premium Grade High Speed Steel Black Oxide Finish Designed for drilling metal but can also be used on wood, plastics and composite materials. 135 Degree Split Point NAS 907 – Type B Aircraft Extension Drills have a long overall length with a shorter flute length 12" OALIn addition to aircraft manufacturing applications this bit is commonly used by electricians, plumbers, mechanics and contractors when a long reach is required but drilling holes through relatively thin material.
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