Starrett Telescoping Bore Gauge Sets
Four Gauge Set
Spring tension forces two telescoping steel contacts to expand inside the bore; turn the screw to lock the contacts. To find the bore diameter, use a micrometer to measure the distance across the contacts.
| Number of Gauges | Measuring Range | Max. Dp. Measured | Material | Includes | Manufacturer Model Number | Each | |
| 4 | 5/16"-2 1/8" | 2" | Steel | One gauge with 5/16"-1/2" measuring range One gauge with 1/2"-3/4" measuring range One gauge with 3/4"-1 1/4" measuring range One gauge with 1 1/4"-2 1/8" measuring range | S579GZ | 000000 | 0000000 |