- Contact points of different lengths are not interchangeable because any change in length of point radically changes the magnification of the indicator.
- Be sure to replace or interchange only with points of the same length.
- Points of the same length but having different tip diameters are completely interchangeable.
- Contact Point Thread Size is M1.7
- See below for more details

Brown & Sharpe - INTERAPID 312 Test Indicator Contact Points - M1.7 Thread
Filter Products:
Length:
Ball Diameter:
Ball Material:
| Item No. | Length | Ball Diameter | Ball Material | Our Price | QTY |
|---|---|---|---|---|---|
| 74.105996 | .65" | .08" | Carbide | $27.00 | |
| 74.105997 | .65" | .06" | Carbide | $34.00 | |
| 74.105998 | .65" | .31" | Carbide | $27.00 | |
| 74.116284 | .65" | .015" | Carbide | $49.00 | |
| 74.111486 | .812" | .08" | Carbide | $38.00 | |
| 74.111487 | .812" | .06" | Carbide | $38.00 | |
| 74.111488 | .812" | .31" | Carbide | $38.00 | |
| 74.106361 | 1.375" | .08" | Carbide | $48.00 | |
| 74.106363 | 1.375" | .31" | Carbide | $40.00 | |
| 74.111492 | 1.75" | .08" | Carbide | $41.00 | |
| 74.111493 | 1.75" | .31" | Carbide | $41.00 | |
| 74.111913 | 2.675" | .08" | Carbide | $45.00 | |
| 74.111912 | 2.675" | .1" | Carbide | $71.00 | |
| 74.107899 | .65" | .08" | Steel | $22.00 | |
| 74.107901 | .65" | .06" | Steel | $14.60 | |
| 74.107903 | .65" | .31" | Steel | $16.60 | |
| 74.111489 | .812" | .08" | Steel | $23.00 | |
| 74.111490 | .812" | .06" | Steel | $23.00 | |
| 74.111491 | .812" | .31" | Steel | $23.00 |