When drilling metals, use a cutting compond such as MAG-LUBE super concentrated cutting fluid

PART NO.
DIAMETER INCH
DIAMETER MM
MILD STEEL
TOOL & STAINLESS STEELS
CAST IRON
BRASS
ALUMINUM
624.0916
 9/16"
14
550
300
400
790
900
624.1016
 5/8"
16
530
275
365
730
825
624.1116
 11/16"
17
500
250
330
665
750
624.1216
 3/4"
19
460
230
300
600
690
624.1316
 13/16"
21
425
210
280
560
630
624.1416
 7/8"
22
390
195
260
520
585
624.1516
 15/16"
24
370
185
245
495
555
624.1616
 1"
25
350
175
235
470
525
624.1716
 1-1/16"
27
325
160
215
435
480
624.1816
 1-1/8"
29
300
150
200
400
450
624.1916
 1-3/16"
30
285
145
190
380
425
624.2016
 1-1/4"
32
275
140
180
360
410
624.2116
 1-5/16"
33
260
135
175
345
390
624.2216
 1-3/8"
35
250
125
165
330
375
624.2316
 1-7/16"
37
240
120
160
315
360
624.2416
 1-1/2"
38
230
115
150
300
345
624.2516
 1-9/16"
40
220
110
145
290
330
624.2616
 1-5/8"
41
210
150
140
280
315
624.2716
 1-11/16"
43
205
100
135
270
305
624.2816
 1-3/4"
44
195
95
130
260
295
624.2916
 1-13/16"
46
190
95
125
250
285
624.3016
 1-7/8"
48
180
90
120
240
270
624.3216
 2"
51
170
85
115
230
255
624.3316
 2-1/16"
52
165
80
110
220
245
624.3416
 2-1/8"
54
160
80
105
210
240
624.3616
 2-1/4"
57
150
75
100
200
230
624.3716
 2-5/16"
59
145
75
100
195
225
624.3816
 2-3/8"
60
140
70
95
190
220
624.4016
 2-1/2"
64
135
70
90
180
205
624.4116
 2-9/16"
65
130
65
85
175
200
624.4216
 2-5/8"
67
130
65
85
170
195
624.4416
 2-3/4"
70
125
60
80
160
185
624.4616
 2-7/8"
73
120
60
80
160
180
624.4816
 3"
76
115
55
75
150
170
624.5016
 3-1/8"
79
110
55
70
145
165
624.5216
 3-1/4"
83
105
50
70
140
155
624.5416
 3-3/8"
86
100
50
65
130
150
624.5616
 3-1/2"
89
95
45
65
125
145
624.5816
 3-5/8"
92
95
45
60
120
140
624.6016
 3-3/4"
94
90
45
60
120
135
624.6216
 3-7/8"
98
90
45
60
115
130
624.6416
 4"
102
85
40
55
115
125
624.6616
 4-1/8"
105
85
40
55
110
120
624.6816
 4-1/4"
108
80
40
55
110
115
624.7016
 4-3/8"
111
80
40
50
100
110
624.7216
 4-1/2"
114
75
35
50
100
105
624.7616
 4-3/4"
121
70
35
45
90
95
624.8016
 5"
127
65
30
40
85
90
624.8416
 5-1/4"
133
60
30
35
80
85
624.8816
 5-1/2"
140
60
30
35
80
85
624.9216
 5-3/4"
146
55
25
35
75
80
624.9616
 6"
152
55
25
35
75
80

© 2004 Mag-Bit