API AND PREMIUM GAGES （Continued）

The SG-8001 saddle tester is used to detect the hook shape or bending of the end of the pipe joint. Only the RC-375 measuring head is used.

Back-of -Box is used to measure the diameter of the sealing surface of the ferrule and the female buckle. The measuring instrument must be calibrated before use. The calibration standard block needs to be informed when ordering.

The PT-4000 measuring instrument is used to adjust the position where the API ferrule thread needs to be repaired.

The SE-1000 straight edge measuring instrument is used to test the straightness of oil well tubing and casing. The product quote includes a set of SE-1000 standard blocks.

CA-9001 Hoop Calibration Gauge is used to check whether the threads at both ends of the hoop are aligned with each other.

Product number	Description	Measuring range
SG-8001	Saddle instrument	All Sizes
BB-7000	Back-of-Box sealing surface diameter measuring instrument	Need to be customized
PT-4000	Power Tight Make-up Gage	All Sizes
SE-1000	Straight edge measuring instrument	36”~64”
SES-1000	Spare parts for straight-edge measuring instrument calibration blocks	----
CA-9001	Nodal Thread Calibrator	All Sizes