Data Sheet

95
04
95
04
Table of cutting speeds for ULTIMATECUT step drills
Material Application Working step Hand drill Pillar drill Pillar drill /
CNC machine
manual feed automatic feed
Structural steel
(e.g. S235JR)
Non-ferrous metals /
Plexiglas / Plastics / Wood
tapping (drilling
through 1st step)
up to 1000 rpm
cooling recommended
up to 1000 rpm
cooling recommended
approx. 750 rpm
f = 0,1mm/rev
cooling necessary
reaming
(from 2nd step)
100 - 250 rpm
cooling recommended
250- 350 rpm
cooling recommended
Stainless steel
up to V2A
tapping (drilling
through 1st step)
up to 600 rpm
cooling necessary
up to 600 rpm
cooling necessary
approx. 600 rpm
f = 0,05mm/rev
cooling necessary
reaming
(from 2nd step)
100 - 200 rpm
cooling necessary
200 - 300 rpm
cooling necessary