GUHRING - Твердосплавные микросверла - 2009 EN
для размещения заказа - guhring@guhring-tools.ru Made by Guhring
Solid carbide Micro-precision drills
Special tools
Superior in every sense For special applications: Special Including:
ExclusiveLine micro-precision drills have solutions to customer requirements • intermediate sizes for the standard
proven their exceptional performance In addition to spiral-fluted standard
capabilities in various volume applica- micro-precision drills without internal range
tions and tool life tests.The tables below cooling from 0.8 mm nominal diameter • stepped tools for multi-diameter
document a few application examples for drilling depths up to 4xD and 7xD as
with convincing results. well as from 1.4 mm nominal diameter holes or countersunk holes
with internal cooling for up to 8xD and • special lengths up to 30xD drilling
15xD, Guhring also provides special
tools as part of the ExclusiveLine range. depth
• other shank forms
• alternative coatings
A questionnaire for special tools can be
found at the end of this brochure.
Internal cooling increases tool life considerably!
A comparison between a conventional internal cooling 6408 demonstrates the
micro-precision drill w/o internal cooling advantages of internal cooling: Tool life
for holes up to 7xD and a 8xD drill with increases considerably.
Guhring no. Competitor without internal cooling 6408 with internal cooling
Diameter 2.6 mm
Coating 2.6 mm SuperA
TiAIN
Material group stainless steel
stainless steel
Material 105CrMo17
description 105CrMo17 8xD
Drill. depth [mm] 7xD
Hole type blind hole
blind hole
Cooling internal 100 bar
Coolant external neat oil
Machine type neat oil
machining centre
vc [mm/min] machining centre
f [mm/rev.] 53
53 0.06
Tool life 0.08
500 workpieces, end of tool life not reached!
100 workpieces
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