Insert Selection Process:
1. Determine thread size and minimum minor diameter.
2. Determine minimum bore size smaller than the minor diameter from "Spiralock Insert Selection Chart"
below.
3. Select appropriate insert blank size for minimum bore.
4. Select Spiralock EDP# for corresponding insert blank and pitch size using charts on the following page.
5. Select carbide grade and coating (if any).
Spiralock Insert Selection Chart
Min. Bore
Size
Pitch Range
Boring Bar #
Blank
0.240
06
20-32 T.P.I.
(1.00-0.45 mm)
SIR 0205 H06
06 IR A 60
0.310
08
16-32 T.P.I.
(1.50-0.45 mm)
SIR 0265 K08
08 IR (X) 60
0.350
SIR 0310 K08
0.470
11
14-32 T.P.I.
(1.75-0.45 mm)
SIR 0375 H11
11 IR A 60
SIR 0375 K11
SIR 0375 M11 C
0.580
SIR 0500 L11
SIR 0500 P11 C
0.640
16
7-32 T.P.I.
(3.50-0.45 mm)
SIR 0500 M16
16 IR (X) 60
0.750
SIR 0625 P16
SIR 0625 R16 C
0.900
SIR 0750 P16
1.160
SIR 1000 R16
1.400
SIR 1250 S16
1.650
SIR 1500 T16
22
6 T.P.I.
(5.00-0.45 mm)
SIR 0750 P22
22 IR N 60
SIR 1000 R22
1.500
SIR 1250 S22
Note: For assistance, please contact Spiralock Corporation at 248-543-7800 or 800-521-2688.
Internal Threading InsertsLaydown Style
Pitch
EDP#
32
90114
28
90116
27
90118
24
90120
20
90122
18
90124
90126
14
90128
90144
90146
90148
90150
90152
90154
90156
90158
13
90160
12
90162
11.5
90164
90166
10
90168
9
90170
8
90172
7
90174
6
90176
Internal Threading InsertsLaydown StyleMetric Sizes
0.80
90014
1.00
90016
1.25
90018
1.50
90020
1.75
90022
90038
90040
90042
90044
90046
2.00
90048
2.50
90050
3.00
90052
3.50
90054
4.00
90056
4.50
90058
5.00
90060
5.50
90062
6.00
90064
Miniature Inserts
90324
90326
90328
90330
90334
90336
90338
90340
90342
90344
0.50
90300
0.75
90302
90304
90308
90310
90312
90314
90316