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　HSS TWIST DRILL
　Wood Working Bit
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　Auger Bit Set
   
  JIANGSU WINNER TOOLS CO.,LTD
   
  Add:Houxiang Town， Danyang City,Jiangsu province,China
   
  Tel: 0511-86329998　86325588
   
  　　 0511-86322888　86322898　
   
  Fax:0511-86310818
   
  P C:212312
   
  Wed：www.cctools58.com
   
  Email：cctools58@126.com
 
 
TWIST DRILL
 
 
Diameter of Drill
Flute Length
Overall Length
D
Decimal
Inch
Equivalent
Millimeter
Equivalent
F
L
Fraction
No.
Ltr.
Inch
mm
Inch
mm
 
60
 
0.0400
1.016
11/16
17
15/8
41
 
59
 
0.0410
1.041
11/16
17
15/8
41
 
58
 
0.0420
1.067
11/16
17
15/8
41
 
57
 
0.0430
1.092
3/4
19
13/4
44
 
56
 
0.0465
1.181
3/4
19
13/4
44
3/64
 
 
0.0469
1.191
3/4
19
13/4
44
 
55
 
0.0520
1.321
7/8
22
17/8
48
 
54
 
0.0550
1.397
7/8
22
17/8
48
 
53
 
0.0595
1.511
7/8
22
17/8
48
1/16
 
 
0.0625
1.588
7/8
22
17/8
48
 
52
 
0.0635
1.613
7/8
22
17/8
48
 
51
 
0.0670
1.702
1
25
2
51
 
50
 
0.0700
1.778
1
25
2
51
 
49
 
0.0730
1.859
1
25
2
51
 
48
 
0.0760
1.930
1
25
2
51
5/64
 
 
0.0781
1.984
1
25
2
51
 
47
 
0.0785
1.994
1
25
2
51
 
46
 
0.0810
2.057
11/8
29
21/8
54
 
45
 
0.0820
2.083
11/8
29
21/8
54
 
44
 
0.0860
2.184
11/8
29
21/8
54
 
43
 
0.0890
2.261
11/4
32
21/4
57
 
42
 
0.0935
2.375
11/4
32
21/4
57
3/32
 
 
0.0938
2.383
11/4
32
21/4
57
 
41
 
0.0960
2.438
13/8
35
23/8
60
 
40
 
0.0980
2.489
13/8
35
23/8
60
 
39
 
0.0995
2.527
13/8
35
23/8
60
 
38
 
0.1015
2.578
17/16
37
21/2
64
 
37
 
0.1040
2.642
17/16
37
21/2
64
 
36
 
0.1065
2.705
17/16
37
21/2
64
7/64
 
 
0.1094
2.7794
11/2
38
25/8
67
 
35
 
0.1100
2.794
11/2
38
25/8
67
 
34
 
0.1110
2.819
11/2
38
25/8
67
 
33
 
0.1130
2.870
11/2
38
25/8
67
 
32
 
0.1160
2.946
15/8
41
23/4
70
 
31
 
0.1200
3.048
15/8
41
23/4
70
1/8
 
 
0.1250
3.175
15/8
41
23/4
70
 
30
 
0.1285
3.264
15/8
41
23/4
70
 
29
 
0.1360
3.454
13/4
44
27/8
73
 
28
 
0.1405
3.569
13/4
44
27/8
73
9/64
 
 
0.1406
3.571
13/4
44
27/8
73
 
27
 
0.1440
3.658
17/8
48
3
76
 
26
 
0.1470
3.734
17/8
48
3
76
 
25
 
0.1495
3.797
17/8
48
3
76
 
24
 
0.1520
3.861
2
51
31/8
79
 
23
 
0.1540
3.912
2
51
31/8
79
5/32
 
 
0.1562
3.967
2
51
31/8
79
 
22
 
0.1570
3.988
2
51
31/8
79
 
21
 
0.1590
4.039
21/8
54
31/4
83
 
20
 
0.1610
4.089
21/8
54
31/4
83
 
19
 
0.1660
4.216
21/8
54
31/4
83
 
18
 
0.1695
4.305
21/8
54
31/4
83
11/64
 
 
0.1719
4.366
21/8
54
31/4
83
 
17
 
0.1730
4.394
23/16
56
33/8
86
 
16
 
0.1770
4.496
23/16
56
33/8
86
 
15
 
0.1800
4.572
23/16
56
33/8
86
 
14
 
0.1820
4.623
23/16
56
33/8
86
 
13
 
0.1850
4.700
25/16
59
31/2
89
 
Diameter of Drill
Flute Length
Overall Length
D
Decimal
Inch
Equivalent
Millimeter
Equivalent
F
L
Fraction
No.
Ltr.
Inch
mm
Inch
mm
3/16
 
 
0.1875
4.762
25/16
59
31/2
89
 
12
 
0.1890
4.800
25/16
59
31/2
89
 
11
 
0.1910
4.851
25/16
59
31/2
89
 
10
 
0.1935
4.915
27/16
62
35/8
92
 
9
 
0.1960
4.978
27/16
62
35/8
92
 
8
 
0.1990
5.054
27/16
62
35/8
92
 
7
 
0.2010
5.105
27/16
62
35/8
92
13/64
 
 
0.2031
5.159
27/16
62
35/8
92
 
6
 
0.2040
5.182
21/2
64
33/4
95
 
5
 
0.2055
5.220
21/2
64
33/4
95
 
4
 
0.2090
5.309
21/2
64
33/4
95
 
3
 
0.2130
5.410
21/2
64
33/4
95
7/32
 
 
0.2188
5.558
21/2
64
33/4
95
 
2
 
0.2210
5.613
25/8
67
37/8
98
 
1
 
0.2280
5.791
25/8
67
37/8
98
 
 
A
0.2340
5.944
25/8
67
37/8
98
15/64
 
 
0.2344
5.954
25/8
67
37/8
98
 
 
B
0.2380
6.045
23/4
70
4
102
 
 
C
0.2420
6.147
23/4
70
4
102
 
 
D
0.2460
6.248
23/4
70
4
102
 
 
E
0.2500
6.350
23/4
70
4
102
 
 
F
0.2570
6.528
27/8
73
41/8
105
 
 
G
0.2610
6.629
27/8
73
41/8
105
17/64
 
 
0.2656
6.746
27/8
73
41/8
105
 
 
H
0.2660
6.756
27/8
73
41/8
105
 
 
I
0.2720
6.909
27/8
73
41/8
105
 
 
J
0.2770
7.036
27/8
73
41/4
108
 
 
K
0.2810
7.137
215/16
75
41/4
108
9/32
 
 
0.2812
7.142
215/16
75
41/4
108
 
 
L
0.2900
7.366
215/16
75
41/4
108
 
 
M
0.2950
7.493
31/16
78
43/8
111
19/64
 
 
0.2969
7.541
31/16
78
43/8
111
 
 
N
0.3020
7.671
31/16
78
43/8
111
5/16
 
 
0.3125
7.938
33/16
81
41/2
114
 
 
O
0.3160
8.026
33/16
81
41/2
114
 
 
P
0.3230
8.204
35/16
84
45/8
117
21/64
 
 
0.3281
8.334
35/16
84
45/8
117
 
 
Q
0.3320
8.433
37/16
87
43/4
121
 
 
R
0.3390
8.611
37/16
87
43/4
121
11/32
 
 
0.3438
8.733
37/16
87
43/4
121
 
 
S
0.3480
8.839
31/2
89
47/8
124
 
 
T
0.3580
9.093
31/2
89
47/8
124
23/64
 
 
0.3594
9.129
31/2
89
47/8
124
 
 
U
0.3680
9.347
35/8
92
5
127
3/8
 
 
0.3750
9.525
35/8
92
5
127
 
 
V
0.3770
9.576
35/8
92
5
127
 
 
W
0.3860
9.804
33/4
95
51/8
130
25/64
 
 
0.3906
9.921
33/4
95
51/8
130
 
 
X
0.3970
10.084
33/4
95
51/8
130
 
 
Y
0.4090
10.262
37/8
98
51/4
133
13/32
 
 
0.4062
10.317
37/8
98
51/4
133
 
 
Z
0.4130
10.490
37/8
98
51/4
133
27/64
 
 
0.4219
10.716
315/16
100
53/8
137
7/16
 
 
0.4375
11.112
41/16
103
53/8
140
29/64
 
 
0.4531
11.509
41/16
106
55/8
143
15/32
 
 
0.4688
11.908
45/16
110
53/4
146
31/64
 
 
0.4844
12.304
43/8
111
57/8
149
1/2
 
 
0.5000
12.700
41/2
114
6
152
     
 
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