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Two-fluted gun drills with solid carbide head Z 80
Cutting speeds Feed rates
Cutting
parameters
for
0,4
Al-alloys
(acc. to Si-content)
0,3
Short chipping
non-ferrous metals
0,2 Feed rate f mm/rev
Cast iron
0,1
GGG, GTW, GTS
0
50 100 150 200 250 0 5 10 20 25 25 27
Cutting speed vc m/min Tool-Ø mm
Coolant values Z 80
(Recommended values for soluble oil)
50 50
Art. no. 89508 with point grind for cast materials
40
40
Pressure P (bar) 30 30 Quantity Q (lmin)
20
20
10 10
Art. no. 89518 with point grind for aluminium
5 10 15 20 25 30
Diameter nominal (mm)
Coolant pressure max. Coolant quantity max.
Coolant pressure min. Coolant quantity min.
283
04_TLB.indb 283 28.11.11 11:06
