Dwg | Part no. | SPI no. |  |  |
 | IA2A | 20-017-0 | .8-2.0" measuring head with box and all plugs |  |
 | IA2 |  | 20-50 mm measuring head with box and plugs |  |
 | IAP555A | 20-042-8 | .0001" dial indicator for bore gage |  |
0 | 042388 | 04-868-6 | wooden box for .8-2.0 | Price |
1 | 044100 | 04-774-6 | measuring head assembled | Price |
4 | 041868 | 04-777-9 | vertical rack | Price |
5 | 042139 | 04-778-7 | flat contact | Price |
6 | 042035 | 04-744-9 | guide ø1,95 | Price |
7 | 041869 | 04-779-5 | centering washer | Price |
8 | 041870 | 04-780-3 | spring | Price |
9 | 044102 | 04-781-1 | bushing | Price |
10 | 044103 | 04-782-9 | bushing | Price |
11 | 041977 | 04-783-7 | screw for cover | Price |
12 | 042034 | 04-784-5 | brass bushing | Price |
13 | 042041 | 04-785-2 | pinion | Price |
14 | 044104 | 04-786-0 | horizontal rack | Price |
16 | 042011 | 04-787-8 | conical pin | Price |
17 | 042059 | 04-788-6 | blue plate | Price |
18 | 041872 | 04-789-4 | threaded bushing | Price |
19 | 044105 | metric | contact #1 (1,5 mm) for metric models | Price |
19 | 044106 | metric | contact #2 (2,5 mm) for metric models | Price |
19 | 044107 | metric | contact #3 (3,5 mm) for metric models | Price |
19 | 044108 | metric | contact #4 (4,5 mm) for metric models | Price |
19 | 044109 | metric | contact #5 (5,5 mm) for metric models | Price |
19 | 044110 | metric | contact #6 (6,5 mm) for metric models | Price |
19 | 044111 | 04-790-2 | contact #1 (.80") | Price |
19 | 044112 | 04-791-0 | contact #2 (.84") | Price |
19 | 044113 | 04-792-8 | contact #3 (.88") | Price |
19 | 044114 | 04-793-6 | contact #4 (.92") | Price |
19 | 044115 | 04-794-4 | contact #5 (.96") | Price |
19 | 044116 | 04-795-1 | contact #6 (1.00") | Price |
22 | 041876 | 04-796-9 | extension A (.20") | Price |
22 | 041877 | 04-797-7 | extension B (.40") | Price |
22 | 041878 | 04-798-5 | extension C (.80") | Price |
22 | 041873 | metric | extension A (5 mm) for metric models | Price |
22 | 041874 | metric | extension B (10 mm) for metric models | Price |
22 | 041875 | metric | extension C (20 mm) for metric models | Price |
24 | 041879 | 04-800-9 | nut | Price |
26 | 041880 | 04-801-7 | spring | Price |
27 | 041881A |  | adjusting wrench for screw 041881 (0.9 mm) | Price |
27 | 041881 | 04-802-5 | screw | Price |
28 | 044117 | 04-803-3 | centering sled (steel) | Price |
28 | 044118 |  | centering sled (carbide) | Price |
29 | IA2-29 | 04-804-1 | depth stop attachment, short | Price |
30 | IA2-30 | 04-805-8 | depth stop attachment, long | Price |
31 | IA2-31 | 04-806-6 | knurled button for depth stop | Price |
32 | 044120 | 04-807-4 | contact holder (inch and metric) | Price |
32 | 044121 |  | contact holder with inch contacts and 3 extensions | Price |
32 | 044119 |  | contact holder with metric contacts and 3 extensions | Price |
34 | 041889 | 04-808-2 | measurement chart (inch) | Price |
35 | 042066 | 04-809-0 | wrench for contacts (made in Germany) | Price |
 | RI-100 | 20-043-6 | 4" depth extension | Price |