Lead & Taper Gauges
Two- and three-point lead gauges and internal and external taper gauges for API and straight threads.
Lead error — often caused by worn lead screws or lagging servo drives on threading lathes — leads to standoff error and failed connections, and lead inspection is required by API for line pipe, rotary shouldered connections and casing and tubing. Gagemaker's two-point LG-6001 (external) and LG-6002 (external and internal) and three-point LG-5003 lead gauges read to 0.0001" on ACME, Stub ACME, UN and API threads, and are preset with lead setting standards made to ANSI, API 5B and API 7-2.
Thread taper is the change in pitch diameter along the connection, and taper error causes galling, poor fit and incorrect engagement. Gagemaker's JSS external and internal taper gauges measure variation in connection taper; they ship with 0.072" (T072) contact points as standard, and the IT-6001 internal gauge includes extension rods up to 13 3/8".
- Two-point and three-point lead gauges
- 0.0001" resolution lead indicators
- Lead setting standards to ANSI, API 5B and API 7-2
- External and internal taper gauges
- Interchangeable contact points
- API casing, tubing and line pipe threads
- Rotary shouldered connections
- ACME and UN straight threads
- Diagnosing lathe lead error
Explore other Gagemaker product lines
Pitch Diameter Gauges
Adjustable ball pitch diameter gauges for internal and external straight and tapered threads.
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Crest Diameter & Ovality Gauges
MRP gauges that detect diameter and ovality variation on tapered tubing, casing and premium connections.
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Functional Thread Gauges
Adjustable functional size (GO/NO GO) thread roll gauges for external and internal threads.
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Wall Thickness & Groove Gauges
Groove diameter and width gauges, setting masters and GO/NO GO checks for API 6A BX, R and RX ring grooves.
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Contact our team for genuine Gagemakerlead & taper gauges with full technical support and accredited calibration across the UAE.