Global Product Catalogue v26.1 - Catalog - Page 376
FRACTIONAL
6 Flute Countersink
Series
606
Fractional
K
CAST IRONS
Gray, Malleable,
Ductile
ALUMINUM ALLOYS
2017, 2024, 356,
6061, 7075
≤ 220 Bhn
or
≤ 19 HRc
105
(84-126)
75
≤ 330 Bhn
or
≤ 36 HRc
≤ 80 Bhn
or
≤ 47 HRb
≤ 150 Bhn
or
≤ 88 HRb
(60-90)
225
(180-270)
190
(152-228)
N
COPPER ALLOYS
Alum Bronze, C110,
Muntz Brass
≤ 140 Bhn
or
≤ 3 HRc
DC • in
Vc
(sfm)
Hardness
95
(76-114)
≤ 200 Bhn
or
≤ 23 HRc
80
(64-96)
1/8
3/16
1/4
3/8
1/2
3/4
1
RPM
3209
2139
1604
1070
802
535
401
Fr
0.0012
0.0018
0.0024
0.0036
0.0049
0.0073
0.0097
Feed (ipm)
3.9
3.9
3.9
3.9
3.9
3.9
3.9
RPM
2292
1528
1146
764
573
382
287
Fr
0.0012
0.0018
0.0024
0.0037
0.0049
0.0073
0.0098
Feed (ipm)
2.8
2.8
2.8
2.8
2.8
2.8
2.8
RPM
6876
4584
3438
2292
1719
1146
860
Fr
0.0015
0.0022
0.0030
0.0045
0.0060
0.0090
0.0120
Feed (ipm)
10.3
10.3
10.3
10.3
10.3
10.3
10.3
RPM
5806
3871
2903
1935
1452
968
726
Fr
0.0015
0.0022
0.0030
0.0045
0.0060
0.0090
0.0120
Feed (ipm)
8.7
8.7
8.7
8.7
8.7
8.7
8.7
RPM
2903
1935
1452
968
726
484
363
Fr
0.0008
0.0011
0.0015
0.0023
0.0030
0.0045
0.0061
Feed (ipm)
2.2
2.2
2.2
2.2
2.2
2.2
2.2
RPM
2445
1630
1222
815
611
407
306
Fr
0.0008
0.0012
0.0016
0.0023
0.0031
0.0047
0.0062
Feed (ipm)
1.9
1.9
1.9
1.9
1.9
1.9
1.9
continued on next page
376
DRILLS
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