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Hole diameter (drill diameter) D(mm)

0.02
0.03
0.04
0.05
0.08
0.11
0.12
0.19
0.2
0.21
0.22
0.23
0.24
0.25
0.26
0.27
0.28
0.29
0.3
0.31
0.32
0.33
0.34
0.35
0.36
0.37
0.38
0.39
0.4
0.41
0.42
0.43
0.44
0.45
0.46
0.47
0.48
0.49
0.5
0.51
0.52
0.53
0.54
0.55
0.56
0.57
0.58
0.59
0.6
0.61
0.62
0.63
0.64
0.65
0.66
0.67
0.68
0.69
0.7
0.71
0.72
0.73
0.74
0.75
0.76
0.77
0.78
0.79
0.8
0.81
0.82
0.83
0.84
0.85
0.86
0.87
0.88
0.89
0.9
0.91
0.92
0.93
0.94
0.95
0.96
0.97
0.98
0.99
1
1.01
1.02
1.03
1.04
1.05
1.06
1.07
1.08
1.09
1.1
1.11
1.12
1.13
1.14
1.15
1.16
1.17
1.18
1.19
1.2
1.21
1.22
1.23
1.24
1.25
1.26
1.27
1.28
1.29
1.3
1.31
1.32
1.33
1.34
1.35
1.36
1.37
1.38
1.39
1.4
1.41
1.42
1.43
1.44
1.45
1.46
1.47
1.48
1.49
1.5
1.5X10D
1.51
1.52
1.53
1.54
1.55
1.56
1.57
1.58
1.59
1.6
1.6×10D
1.61
1.62
1.63
1.64
1.65
1.66
1.67
1.68
1.69
1.7
1.71
1.72
1.73
1.74
1.75
1.76
1.77
1.78
1.79
1.8
1.8×10D
1.81
1.82
1.83
1.84
1.85
1.86
1.87
1.88
1.89
1.9
1.91
1.92
1.93
1.94
1.95
1.96
1.97
1.98
1.99
2
2×10D
2.01
2.02
2.03
2.04
2.05
2.06
2.07
2.08
2.09
2.1
2.1×10D
2.11
2.12
2.13
2.14
2.15
2.16
2.17
2.18
2.19
2.2
2.2×10D
2.21
2.22
2.23
2.24
2.25
2.26
2.27
2.28
2.29
2.3
2.3×10D
2.31
2.32
2.33
2.34
2.35
2.36
2.37
2.38
2.39
2.4
2.4×10D
2.41
2.42
2.43
2.44
2.45
2.46
2.47
2.48
2.49
2.5
2.5×10D
2.51
2.52
2.53
2.54
2.55
2.56
2.57
2.58
2.59
2.6
2.6×10D
2.61
2.62
2.63
2.64
2.65
2.66
2.67
2.68
2.69
2.7
2.7×10D
2.71
2.72
2.73
2.74
2.75
2.76
2.77
2.78
2.79
2.8
2.8×10D
2.81
2.82
2.83
2.84
2.85
2.86
2.87
2.88
2.89
2.9
2.9×10D
2.91
2.92
2.93
2.94
2.95
2.96
2.97
2.98
2.99
3
3×10D
3.01
3.02
3.03
3.04
3.05
3.06
3.07
3.08
3.09
3.1
3.1×10D
3.11
3.12
3.13
3.14
3.15
3.16
3.17
3.18
3.19
3.2
3.2×10D
3.21
3.22
3.23
3.24
3.25
3.26
3.27
3.28
3.29
3.3
3.3×10D
3.31
3.32
3.33
3.34
3.35
3.36
3.37
3.38
3.39
3.4
3.4×10D
3.41
3.42
3.43
3.44
3.45
3.46
3.47
3.48
3.49
3.5
3.5×10D
3.51
3.52
3.53
3.54
3.55
3.56
3.57
3.58
3.59
3.6
3.6×10D
3.61
3.62
3.63
3.64
3.65
3.66
3.67
3.68
3.69
3.7
3.7×10D
3.71
3.72
3.73
3.74
3.75
3.76
3.77
3.78
3.79
3.8
3.8×10D
3.81
3.82
3.83
3.84
3.85
3.86
3.87
3.88
3.89
3.9
3.9×10D
3.91
3.92
3.93
3.94
3.95
3.96
3.97
3.98
3.99
4
4×10D
4.01
4.02
4.03
4.04
4.05
4.06
4.07
4.08
4.09
4.1
4.1×10D
4.11
4.12
4.13
4.14
4.15
4.16
4.17
4.18
4.19
4.2
4.2×10D
4.21
4.22
4.23
4.24
4.25
4.26
4.27
4.28
4.29
4.3
4.3×10D
4.31
4.32
4.33
4.34
4.35
4.36
4.37
4.38
4.39
4.4
4.4×10D
4.41
4.42
4.43
4.44
4.45
4.46
4.47
4.48
4.49
4.5
4.5×10D
4.51
4.52
4.53
4.54
4.55
4.56
4.57
4.58
4.59
4.6
4.6×10D
4.61
4.62
4.63
4.64
4.65
4.66
4.67
4.68
4.69
4.7
4.7×10D
4.71
4.72
4.73
4.74
4.75
4.76
4.77
4.78
4.79
4.8
4.8×10D
4.81
4.82
4.83
4.84
4.85
4.86
4.87
4.88
4.89
4.9
4.9×10D
4.91
4.92
4.93
4.94
4.95
4.96
4.97
4.98
4.99
5
5×10D
5.01
5.02
5.03
5.04
5.05
5.06
5.07
5.08
5.09
5.1
5.1×10D
5.11
5.12
5.13
5.14
5.15
5.16
5.17
5.18
5.19
5.2
5.2×10D
5.21
5.22
5.23
5.24
5.25
5.26
5.27
5.28
5.29
5.3
5.3×10D
5.31
5.32
5.33
5.34
5.35
5.36
5.37
5.38
5.39
5.4
5.4×10D
5.41
5.42
5.43
5.44
5.45
5.46
5.47
5.48
5.49
5.5
5.5×10D
5.51
5.52
5.53
5.54
5.55
5.56
5.57
5.58
5.59
5.6
5.6×10D
5.61
5.62
5.63
5.64
5.65
5.66
5.67
5.68
5.69
5.7
5.7×10D
5.71
5.72
5.73
5.74
5.75
5.76
5.77
5.78
5.79
5.8
5.8×10D
5.81
5.82
5.83
5.84
5.85
5.86
5.87
5.88
5.89
5.9
5.9×10D
5.91
5.92
5.93
5.94
5.95
5.96
5.97
5.98
5.99
6
6×10D
6.03
6.04
6.1
6.1×10D
6.15
6.2
6.2×10D
6.25
6.3
6.3×10D
6.35
6.35 (¼")
6.4
6.4×10D
6.5
6.5×10D
6.53
6.6
6.6×10D
6.63
6.7
6.7×10D
6.75
6.8
6.8×10D
6.9
6.9×10D
7
7×10D
7.03
7.1
7.1×10D
7.14
7.2
7.2×10D
7.25
7.3
7.3×10D
7.36
7.37
7.38
7.4
7.4×10D
7.45
7.5
7.5×10D
7.52
7.54
7.55
7.6
7.6×10D
7.67
7.7
7.7×10D
7.75
7.8
7.8×10D
7.9
7.9×10D
7.94
7.95
8
8×10D
8.03
8.05
8.1
8.1×10D
8.2
8.2×10D
8.25
8.3
8.3×10D
8.33
8.4
8.4×10D
8.5
8.5×10D
8.53
8.58
8.6
8.6×10D
8.61
8.7
8.7×10D
8.73
8.75
8.8
8.8×10D
8.84
8.9
8.9×10D
9
9×10D
9.03
9.09
9.1
9.1×10D
9.13
9.2
9.2×10D
9.24
9.25
9.26
9.3
9.3×10D
9.34
9.36
9.38
9.4
9.4×10D
9.5
9.5×10D
9.52
9.54
9.55
9.6
9.6×10D
9.7
9.7×10D
9.75
9.8
9.8×10D
9.9
9.9×10D
9.92
9.97
10
10×10D
10.03
10.05
10.1
10.1×10D
10.2
10.2×10D
10.25
10.3
10.3×10D
10.32
10.4
10.4×10D
10.5
10.5×10D
10.6
10.6×10D
10.7
10.7×10D
10.72
10.75
10.8
10.8×10D
10.9
10.9×10D
11
11×10D
11.03
11.05
11.1
11.1×10D
11.11
11.2
11.2×10D
11.22
11.24
11.25
11.3
11.3×10D
11.36
11.38
11.4
11.4×10D
11.5
11.5×10D
11.56
11.6
11.6×10D
11.7
11.7×10D
11.75
11.8
11.8×10D
11.9
11.9×10D
11.91
12
12×10D
12.03
12.1
12.2
12.25
12.3
12.4
12.5
12.55
12.6
12.7
12.75
12.8
12.9
13
13.1
13.2
13.25
13.3
13.4
13.43
13.49
13.5
13.55
13.6
13.7
13.75
13.8
13.89
13.9
14
14.1
14.2
14.25
14.29
14.3
14.4
14.5
14.6
14.68
14.7
14.75
14.8
14.9
14.95
15
15.08
15.1
15.2
15.25
15.3
15.4
15.48
15.5
15.55
15.6
15.7
15.75
15.8
15.87
15.9
16
16.1
16.2
16.25
16.27
16.3
16.4
16.5
16.6
16.67
16.7
16.75
16.8
16.9
17
17.07
17.1
17.2
17.25
17.3
17.4
17.46
17.5
17.55
17.6
17.7
17.75
17.8
17.86
17.9
18
18.1
18.2
18.25
18.26
18.3
18.4
18.5
18.6
18.65
18.7
18.75
18.8
18.9
19
19.05
19.1
19.2
19.25
19.3
19.4
19.45
19.5
19.55
19.6
19.7
19.75
19.8
19.84
19.9
20
20.1
20.2
20.24
20.25
20.3
20.4
20.5
20.64
20.7
20.75
21
21.03
21.25
21.43
21.5
21.75
21.83
22
22.1
22.2
22.22
22.25
22.4
22.5
22.62
22.75
23
23.02
23.25
23.42
23.5
23.75
23.81
24
24.1
24.21
24.25
24.5
24.61
24.75
25
25.1
25.2
25.25
25.4
25.5
25.75
25.8
26
26.19
26.25
26.5
26.59
26.75
26.99
27
27.5
27.75
27.78
28
28.25
28.5
28.57
29
29.5
30
30.1
30.5
31
31.5
31.75
32
32.5
33
33.5
34
34.5
35
35.5
36
36.5
36.91
37
37.5
38
38.1
38.5
39
39.5
40
40.5
41
41.5
42
42.5
43
43.5
44
44.5
45
45.5
46
46.5
47
47.5
48
48.5
49
49.5
50
50.5
50.8
51
52
53
54
55
56
57
58
59
60
61
62
63
63.5
65
68
70
71.5
72
75
77
79.50
93
94
94.50
95.50
96

Groove Length L(mm)

0.075
0.12
0.18
0.22
0.24
0.3
0.33
0.44
0.48
0.55
0.88
1
1.2
1.4
1.5
1.6
1.65
1.98
2
2.5
2.6
3
3.5
3.6
3.7
3.9
4
4.1
4.4
4.5
4.7
5
5.1
5.2
5.3
5.5
5.7
6
6.3
6.4
6.5
6.6
6.8
7
7.2
7.5
7.6
7.8
8
8.3
8.4
8.5
8.8
9
9.2
9.5
9.6
9.8
10
10.2
10.5
10.8
11
11.3
11.4
11.5
11.7
12
12.2
12.6
12.8
13
13.1
13.2
13.5
13.8
14
14.3
14.4
14.9
15
15.3
15.6
15.8
16
16.05
16.2
16.5
16.7
16.8
17
17.1
17.3
17.4
17.6
17.8
18
18.5
18.6
18.8
18.9
19
19.2
19.4
19.5
19.55
19.8
20
20.3
20.4
20.7
21
21.2
21.4
21.6
21.8
22
22.05
22.1
22.2
22.5
22.8
23
23.3
23.4
23.9
24
24.25
24.3
24.8
25
25.2
25.5
25.7
25.8
26
26.1
26.3
26.4
26.6
27
27.6
27.8
28
28.2
28.5
28.8
29
29.3
29.4
30
30.6
30.8
31
31.2
31.5
32
32.3
32.4
33
33.6
33.8
34
34.5
34.8
35
35.3
35.5
36
36.8
37
37.5
38
38.3
39
39.8
40
40.5
41
41.3
42
42.8
43
43.5
44
44.3
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
63.4
64
65
65.5
66
67
67.1
68
69
70
71
71.7
72
73
74
75
76
76.8
77
78
79
80
81
81.4
82
83
84
85
85.4
86
87
88
89
90
90.1
91
92
93
94
94.7
95
96
97
98
98.8
99
100
101
102
103
103.4
104
105
106
107
108
108.4
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
130
131
132
133
134
135
136
137
138
140
142
143
144
145
146
147
148
150
152
153
154
155
156
158
159
160
162
165
168
170
171
172
174
175
176
177
178
180
182
184
185
188
190
191
195
196
198
200
205
206
208
210
214
215
216
220
222
225
230
234
235
239
240
245
248
250
254
255
257
258
260
265
267
270
275
276
277
280
287
295
298
300
310
315
321
330
360
385
440

work material

General Steel
Quenched and tempered steel
High Hardness Steel
Stainless Steel
Cast Iron
Aluminum
Titanium
Copper
Resin

Tool Material Type

High-speed steel
Cobalt HSS
Powder high-speed steel
Carbide
High Vanadium HSS

Overall Length L(mm)

Shank Type

End Mill Shank
Straight Shank
Taper shank

Coating Y/N

Available
N/A

Coating Type

Other

With/without Oil Hole

Available
N/A

Výrobce

Drill Bits (Coating Type: Other Stránka 3)

Drill bits are a type of cutting tool to drill holes in work materials. They are used with machine tools such as drill press, lathe, milling machine and machining center. Drill bit materials include alloy carbide, high speed steel powder, high-speed steel, and some of them have coatings such as silicone-based, TiAlN-based, TiCN-based, TiN-based coatings, or surface treatment such as steam oxide treatment for enhanced oil retention on surface. Additionally, there is also a type of machining called thinning, given to the bit tip to reduce the thrust load applied to it when drilling. There are different shapes of thinning such as X-shape (for machining deep holes), R-shape (for machining stainless-steel-based workpieces) and S-shaped (for machining cast-iron- or non-ferrous-based workpieces); each one of them is used accordingly for different features and applications. In recent years, flat drill bits, which can drill holes without bending even on round surfaces, are attracting attention.