BESTO supply API Internal Flush (I.F.) working, reference and regional master gages per API specification 7-2 for sizes from 2 to 6-5/8 inches in diameter. All working gages are manufactured and certified using a certified API reference master gage as required by the standard.
| INTERNAL FLUSH (I.F.) Master Gages | |||
| SIZE | T.P.I. | T.P.F. | THD FORM |
| 2 | 4 | 2 | V-0.065 |
| 2-3/8 (NC26) | 4 | 2 | V-0.065 |
| 2-7/8 (NC31) | 4 | 2 | V-0.065 |
| 3-1/2 (NC38) | 4 | 2 | V-0.065 |
| 4 (NC46) (4-1/2 XH) | 4 | 2 | V-0.065 |
| 4-1/2 (NC50) (5 XH) | 4 | 2 | V-0.065 |
| 5-1/2 | 4 | 2 | V-0.065 |
| 6-5/8 | 4 | 2 | V-0.065 |
Instructions:
1）Implementation of standards：API SPEC7-2：2017
2）Material: GCr15， Measuring surface hardness 60-63HRC;
3）Comes with the calibration certificates issued by NIM.
How to order?
For example:
Pls mark : Working Gauges:5 1/2 IF RING&PLUG, or5 1/2 IF BOX&PIN,
and E-mail to: sales@bestogages.com