6-28mm 90 Degree 3 Flute Counter Sink 6606380 Overall length 64mm

Overall length 64mm

Set contains: 25

High tensile steels and other difficult materials

it provides a permanent and wear resistant thread in the parent material designed to be stronger than the original thread

100 x M12 x 28

6-28mm 90 Degree 3 Flute Counter Sink 6606380 Overall length 64mmThree 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