Taper Shank Machine Reamers

GB 1133 (Reference to ISO 521£©

Notes£º 1. The reamers are used for reaming holes with accuracy of classes H7, H8, H9 or any other classes required, which must be specified in ordering. The tolerance of classes H7, H8 and H9 is as follows:

Diameter
¡«10
£¾10¡«18
£¾18¡«30
£¾30¡«50
H7
+0.012
+0.006
+0.015
+0.008
+0.017
+0.009
+0.021
+0.012
H8
+0.018
+0.010
+0.022
+0.012
+0.028
+0.016
+0.033
+0.019
H9
+0.030
+0.017
+0.036
+0.020
+0.044
+0.025
+0.052
+0.030

2.

If request, it is available to any a intermediate size in the range of diameters except the recommended sizes.
3. The machine reamers can also be supplied according to ANSI B94.2 and JIS B 4404¡£

 

Diameter
Overall
Lenth
Flute
Length
M.T.
Number
Recommended
Range
Over
thru.
10
9.5
10
168
38
1
-
10.0
10.6
168
38
11
10.6
11.8
175
41
12
11.8
13.2
182
44
13
11.8
13.2
182
44
14
13.2
14
189
47
15
14
15
204
50
2
16
15
16
210
52
17
16
17
214
54
18
17
18
219
56
19
18
19
223
58
20
19
20
228
60
21
20
21.2
232
62
22
21.2
22.4
237
64
23
22.4
23.02
241
66
24
23.02
23.6
264
66
3
25
23.6
25.0
268
68
26
25.0
26.5
273
70
27
26.5
28
277
71
28
26.5
28
277
71
30
28
30
281
73
-
30
31.5
285
75
-
31.5
31.75
290
77
32
31.75
33.5
317
77
4
34
33.5
33.5
321
78
35
33.5
35.5
321
78
36
35.5
37.5
325
79
38
37.5
40.0
329
81
40
40.0
42.5
333
82
42
40.0
42.5
333
82
44
42.5
45.0
336
83
45
42.5
45.0
336
83
46
45.0
47.5
340
84
48
47.5
50.0
344
86
50
47.5
50.0
344
86

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