drill bit HSS-Co DIN 1869 UF-L II 7,5x290 mm
Multipurpose twist drill bit,extra long series The multi-problem solver for deep hole drilling/ Drill bit for very deep holes/ Excelent chip flow with special parabolic flute, specifically for deep hole drilling/ To drill deep holes, in one operation (depending on material about 10 to 15 times the diameter) it is recommended to frequently pull out the drill bit/ /
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
¯ mm 7,5
L 290
L2 200
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
