Page 287 - Hartner

Single-fluted gun drills with solid carbide head E 80

EB 80 standard point grind with chip breaker groove chip breaking groove
for Art.-Nr. 89505, 89509, 89506 and 89507 +0,05
30 ° x12 ° x55 ° 50 ° x0 ° x75 ° 0,4 - 0,6

12 ° 20 ° 12 °
20 ° 30 ° 25 °
D
4
D

Fast service for brazed single-fluted gun drills Tool material: solid carbide/K15
In addition to the ex-stock range Hartner offers a fast service for gun drills Surface finish:
with standard point grind and standard driver in following dimensions. Standard-head lengths (mm)
Delivery time is max. 3 weeks. Ø-range length Ø-range length
nom.-Ø- in increments of head total
mm mm form length 2,00...2,49 15 10,00...10,99 35
≤ 7,5 mm Ø 2,50...2,99 18 11,00...17,00 40
2,00...13,90 0,1 G 650 max 3,00...3,99 20 17,01...20,00 45
4,00...13,90 0,1 C > 7,5 mm Ø Prices 4,00...5,19 25 20,01...23,00 50
1200 max on 5,20...6,99 30 23,01...26,00 55
14,00...22,00 0,5 G 1200 max request 7,00...9,99 35 26,01...40,00 65
14,00...22,00 0,5 C Flute length: min. 20 x D
Cutting Cutting speeds Feed rates
parameters
for
Al-alloys
(acc. to Si-content) 0,175
Structural and
free cutting steels
0,150
Heat-treatable steels
0,125
Cast iron, GGG,
GTW, GTS Feed rate f mm/rev
0,100
Case hardened steels
0,075
Nitriding steels
0,050
Tool steels
0,025
Stainless steels
20 40 60 80 100 200 0 5 10 15 20 25 30 35 40
Cutting speed vc m/min Tool-Ø mm

Coolant values E 80
(Recommended values for soluble oil)
80 75
TiN-coated design with chip breaker
70 65 for long-chipping steels
55
60
Pressure P (bar) 50 45 Quantity Q (lmin)
40
35
30
20 25
15
10 5 TiCN-coated design without chip breaker
for alloyed and high-alloyed steels
5 12 19 26 33 40
Diameter nominal (mm)
Coolant pressure max. Coolant quantity max.
Coolant pressure min. Coolant quantity min.

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04_TLB.indb 281 28.11.11 11:06