
- Starrett 579B Self Centering Telescoping Gauge With 2 Telescoping Arm, 1/2" - 3/4" Range, 2-3/8" Handle Length
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From $35.50 (New)

From $35.50 (New)

| Last Seen | |
| Highest | $35.50 Oct 5, '15 |
| Lowest | $32.62 Apr 29, '15 |
| Average | $35.50 (30d avg) $35.50 (90d avg) $35.50 (180d avg) $34.77 (365d avg) $34.61 (Lifetime average) |
| Added | Feb 12, 2015 |
| Last Seen | |
| Highest | $32.00 Mar 25, '16 |
| Lowest | $27.48 Apr 6, '16 |
| Average | $29.72 (30d avg) $28.36 (90d avg) $27.90 (180d avg) $29.63 (365d avg) $29.99 (Lifetime average) |
| Added | Feb 12, 2015 |
30 day average: 357,776
90 day average: 337,205
Telescoping gauge is used for determining the true size of holes, slots, and recesses up to 6". The ends of both contact is hardened and ground to a radius to allow proper clearance on the smallest hole the gauge will enter. This tool must be slightly "rocked" in the hole being measured to ensure that the tool is on the proper diameter before it is locked and withdrawn. The final hole size is obtained by measuring over the gauge contact with a micrometer.