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Catalog C00400          Page 23   

Solid Tungsten Carbide Twist Drills



Solid Tungsten Carbide
Twist Drills

Superfinished/Stay Sharper






Part No. Drill
Size
Flute
Diam.
O.A.L. Flute
Length
Part No. Drill
Size
Flute
Diam.
O.A.L. Flute
Length
423005
423010
423015
423020
423025
89
79
1/64
78
77
.0135
.0145
.0156
.0160
.0180
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
1/4
1/4
1/4
1/4
1/4
423340
423345
423350
423355
423360
22
21
20
19
18
.1570
.1590
.1610
.1660
.1695
2-1/2
2-1/2
2-1/2
2-3/4
2-3/4
1-3/8
1-3/8
1-3/8
1-5/8
1-5/8
423030
423035
423040
423045
423050
76
75
74
73
72
.0200
.0210
.0225
.0240
.0250
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
1/4
1/4
1/4
1/4
5/16
423365
423370
423375
423380
423385
11/64
17
16
15
14
.1719
.1730
.1770
.1800
.1820
2-3/4
2-3/4
2-3/4
2-3/4
2-3/4
1-5/8
1-5/8
1-3/8
1-5/8
1-5/8
423055
423060
423065
423070
423075
71
70
69
68
1/32
.0260
.0280
.0292
.0310
.0313
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
5/16
5/16
5/16
5/16
5/16
423390
423395
423400
423405
423410
13
3/16
12
11
10
.1850
.1875
.1890
.1910
.1935
2-3/4
2-3/4
2-3/4
2-3/4
2-3/4
1-5/8
1-5/8
1-3/8
1-5/8
1-5/8
423080
423085
423090
423095
423100
67
66
65
64
63
.0320
.0330
.0350
.0360
.0370
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
5/16
5/16
5/8
5/8
5/8
423415
423420
423425
423430
423435
9
8
7
13/64
6
.1960
.1990
.2010
.2031
.2040
3
3
3
3
3
1-3/4
1-3/4
1-3/4
1-3/4
1-3/4
423105
423110
423115
423120
423125
62
61
60
59
58
.0380
.0390
.0400
.0410
.0420
1-1/4
1-1/4
1-1/2
1-1/2
1-1/2
5/8
5/8
3/4
3/4
3/4
423440
423445
423450
423455
423460
5
4
3
7/32
2
.2055
.2090
.2130
.2187
.2210
3
3
3
3
3
1-3/4
1-3/4
1-3/4
1-3/4
1-3/4
423130
423135
423135
423140
423145
57
3/64
56
55
54
.0430
.0465
.0465
.0520
.0550
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
3/4
3/4
3/4
3/4
3/4
423465
423470
423475
423480
423485
1
A
15/64
B
C
.2280
.2340
.2344
.2380
.2420
3
3-1/4
3-1/4
3-1/4
3-1/4
1-3/4
2
2
2
2
423150
423150
423155
423160
423165
53
1.5mm
1/16
52
51
.0595
.0595
.0625
.0635
.0670
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
3/4
3/4
3/4
3/4
3/4
423490
423495
423495
423500
423505
D
1/4
E
F
G
.2460
.2500
.2500
.2570
.2610
3-1/4
3-1/4
3-1/4
3-1/4
3-1/2
2
2
2
2
2-1/8
423170
423175
423180
423185
423190
50
49
48
5/64
47
.0700
.0730
.0760
.0781
.0785
1-3/4
1-3/4
1-3/4
1-3/4
1-3/4
7/8
7/8
7/8
7/8
7/8
423510
423515
423520
423525
423530
17/64
H
I
J
K
.2656
.2660
.2720
.2770
.2810
3-1/2
3-1/2
3-1/2
3-1/2
3-1/2
2-1/8
2-1/8
2-1/8
2-1/8
2-1/8
423190
423195
423200
423205
423210
2mm
46
45
44
43
.0785
.0810
.0820
.0860
.0890
1-3/4
1-3/4
1-3/4
2
2
7/8
7/8
7/8
1
1
423535
423540
423542
423545
423550
9/32
L
M
19/64
N
.2812
.2900
.2950
.2969
.3020
3-1/2
3-1/2
3-3/4
3-3/4
3-3/4
2-1/8
2-1/8
2-3/8
2-3/8
2-3/8
423215
423220
423225
423230
423235
42
3/32
41
40
39
.0935
.0937
.0960
.0980
.0995
2
2
2
2
2-1/4
1
1
1
1
1-1/4
423555
423560
423565
423570
423575
5/16
O
P
21/64
Q
.3125
.3160
.3230
.3281
.3320
3-3/4
3-3/4
3-3/4
4
4
2-3/8
2-3/8
2-3/8
2-1/2
2-1/2
423240
423245
423250
423255
423260
38
37
36
7/64
35
.1015
.1040
.1065
.1094
.1100
2-1/4
2-1/4
2-1/4
2-1/4
2-1/4
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
423580
423585
423590
423595
423600
R
11/32
S
T
23/64
.3390
.3438
.3480
.3580
.3594
4
4
4
4
4
2-1/2
2-1/2
2-1/2
2-1/2
2-1/2
423265
423270
423275
423280
423285
34
33
32
31
1/8
.1110
.1130
.1160
.1200
.1250
2-1/4
2-1/4
2-1/4
2-1/4
2-1/4
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
423605
423610
423615
423620
423625
U
3/8
V
W
25/64
.3680
.3750
.3770
.3860
.3906
4-1/2
4-1/2
4-1/2
4-1/2
4-1/2
2-3/4
2-3/4
2-3/4
2-7/8
2-7/8
423290
423295
423300
423305
423310
30
29
28
9/64
27
.1285
.1360
.1405
.1406
.1440
2-1/4
2-1/2
2-1/2
2-1/2
2-1/2
1-1/4
1-3/8
1-3/8
1-3/8
1-3/8
423630
423635
423640
423645
423650
X
Y
13/32
Z
27/64
.3970
.4040
.4062
.4130
.4219
4-1/2
4-1/2
4-1/2
4-1/2
4-1/2
2-7/8
2-7/8
2-7/8
2-7/8
2-7/8
423315
423320
423325
423330
423335
26
25
24
23
5/32
.1470
.1495
.1520
.1540
.1562
2-1/2
2-1/2
2-1/2
2-1/2
2-1/2
1-3/8
1-3/8
1-3/8
1-3/8
1-3/8
423655
423660
423665
423670
423675
7/16
29/64
15/32
31/64
1/2
.4375
.4531
.4688
.4844
.5000
4-1/2
4-3/4
4-3/4
4-3/4
4-3/4
2-7/8
3
3
3
3
Superfinished cutting edges give excellent results on hardened metals, alloys, and most abrasive materials.  Standards: 118 degree drill point.  Flute tolerance +.0000 -.0003; shank .0000 -.0005.   In-between sizes available upon request.

Wire sizes, fractional, letter sizes in regular drills and miniatures.

See our Discount Information page for Quantity Discounts.
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