drill bit HSS-Co DIN 1897 Typ UF-L 6,5 mm
Multipurpose twist drill bit, stub series High helix angle for removing an increased volume of swarf, enabling quicker feed to be used/ Special flute form reduces "peck fedding", helpes to increase chip flow/ Especially mafe for machies and NC-machines/ /
Usage:Designed to drill: For medium-and long-chip producing materials up to a resistance of max.1200 N/mm². aluminium, copper/die-casting alloys, bronze soft,electrolyte copper, tough brass, stainless steels V2 A and V4 A, titanium, titanium alloys etc.
Package: Bulk in pouches with 10 pcs. up to ¯ 10; from ¯ 10,2 with 5 pcs. each; from ¯ 14,5 with 1 pcs. each
¯ mm 6,5
L 70
L2 31
Tolerance h8
material HSS-Co 5 %
Point grinding PROJAHN'standard
point angle 130¡
web thinning DIN 1412, shape UX
Web thickness Thicker than regular
Web taper without
Web taper without
Helix angle 40¡
shape of flute Parabolic flute
Constructional features acc. to DIN 1414
