35-20.5mm 3 Flute Countersink C107 2050 90 Degree 1840482 whose diameter increases or decreases

whose diameter increases or decreases along the length of the thread

1 3/8" - 1 3/4"

humid or wet conditions including submerged

The unique annular (hollow design allows Twister Bits to cut up to 4x faster than spade and twist drills

35-20.5mm 3 Flute Countersink C107 2050 90 Degree 1840482 whose diameter increases or decreasesThree Flute Countersink 90 degrees , DIN 335 Countersinking Counterboring screw holes for Countersunk screws acc. to DIN 963, 964, 965, 966, 7513, 7516 For Countersunk screws acc. to ISO 2009, 2010, 7046 1, 7046 2, 7047 Chamfering of tapping holes For use in machine applications. Type N For non ferrous, Type UNI For difficult to machine materials