Total solution - from making the perfect thread to ensuring that proper tolerances are met.
Product Lineup
Limit Gauge for Internal Thread (LG)
Used to examine the female thread. The “pass” side and the “no pass” side form a single set. The thread is considered acceptable if the “go” side passes easily and the “no go” side locks after two turns. This gauge is also used to inspect the Whitworth thread.
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Limit Gauge for External Thread (LG)
Used to inspect male thread, the pass side and the non-pass side form a set. The thread is considered acceptable if the side passes, passes easily and the side does not pass, does not lock after two turns. This gauge is also used to inspect the Whitworth thread.
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Conical Thread Gauge for Tube (TG)
Used to inspect tapered tube threads (R · PT). There is a notch on the side, and if the end of the thread is within the scope of the notch, it's OK. This indicates the point of standard dimensions in ANSI (NPT / NPTF) and there are 3-4 stages of notches.
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Standard Thread Gauge (SG)
A gauge created according to the basic thread profile and standard dimensions. A plug gauge and ring gauge that fit perfectly form a single set. It can be used as a standard gauge (master gauge) and can also perform inspection using directly on a male or female thread.
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Wear Inspection Gauge (LCG)
Gauge used to inspect thread ring gauge (LG). Inspects whether or not the Ring Gauge has exceeded the stipulated wear limit.
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Smooth Calibrator (PG, RG)
Also known as buffer calibrator. A caliper used to measure the dimension of the hole or shaft. There is an inspection type and a construction type. Ring gauges are made to order.
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Special Calibrator
Custom gauges are available for right angle, deep hole, etc. Please contact your nearest OSG sales office for details.
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Standard Calibrator (PG-M, RG-M)
Also known as master gauge, it is used to define dimension and serve as a dimension standard for inspection of gauges and comparative measurement equipment (measuring equipment using cylinder gauge, micro indicator, atmosphere micrometer). Buffer calibrators (PG-M) are custom ordered.
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DCT
The effective internal thread diameter, which used to be difficult to determine, can now be measured with readable values.
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Limit Gauge for Thread (LG) Long Neck: Plug
Plug gauge for inspecting deep threads. Its long neck geometry allows inspection of threads in places difficult to access by conventional gauges. Customized product for measuring effective thread length.
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