hardware screws
chicago latrobe 49243 screw machine drill bitblk oxidel
screw machine drill bit standard list number 159 number of pieces 1 heavy duty grade high speed steel black oxide finish split point drill point deg . 135 letter size l decimal equivalent 0.2900 flute length in . 1 9 16 overall length in . 2 3 4 shank dia . in . 0.2900 for alloy carbon and tool steel and cast iron meets exceeds national aerospace standards nas 907 type c br b features b ul li application for alloy carbon and tool steel and cast iron li li decimal equivalent 0.2900 li li finish black oxide li li flute length in . 1 9 16 li li item screw machine drill bit li li material high speed steel li li number of pieces 1 li li overall length in . 2 3 4 li li package quantity 1 li li shank dia . in . 0.2900 li li type standard li li grade heavy duty li li letter size l li li point type split point li li meets exceeds national aerospace standards nas 907 type c li li drill point deg . 135 li li list number 159 li ul