Jobber drills with straight shank DIN 338

TS-Drills, 2-fluted, with coolant ducts
DIN 6538
Range of applications
Manufacturing specifications
Carbide
Article no. 89308
Type TS 80 U
T
R
High-performance drill for the drilling of
unalloyed, low- and highalloyed steels as
well as stainless, acid and heat resistant
steels (up to 900 N/mm 2 ), grey cast iron,
spheroidal graphite iron, brass, bronze,
plastics and graphite, for drilling depths
up to 7 x D.
Advantages, suggestion:
Vibrations and shocks that may occur
during use are absorbed by the HSS
body material holding the brazed carbide
tip. Withstands distortion caused by less
rigid machines. Produces short chips,
including soft, longchipping steels,
thanks to a specially conceived cutting
point geometry. The optimised carbide
grade and point geometry makes the use
of highest speed and feed rates possible,
high alignment accuracy with small
diameter tolerance and excellent surface
finish.
Point grinding: relieved cone with
secondary flank
Point angle: 140˚
Web thinned: form U
Helix angle: standard
Web thickness: greater than standard
Web taper: none
Flute form: smaller than standard
Tolerance on Ø: h7
Shank: reinforced, with longer whistle
notch flat, h6 tolerance
Oil feed: central through the web
Tool material: Carbide (P40)
Other manufacturing specifications to
DIN 6540.
Pre-conditions for use:
Powerful machines. No play in spindle
bearings. Alignment accurate tool holders.
Max. concentricity error of clamped
tools: 0.02 mm.
d2
d1
l 3
l 2
l 1
151