[Professional Production] Thread plug gauges, thread ring gauges, smooth limit plug gauges, smooth plug gauges, high-precision smooth plug gauges, keyway plug gauges, taper plug gauges, widely used in medical, automotive, machinery manufacturing, hardware construction, aerospace technology, and various industries. Our company has a long production history, exquisite technology, and rich experience. Various specifications of thread plug gauges are highly recognized by customers. Both standard and non-standard sizes can be processed and manufactured.

Metric thread plug gauges: M2-M1000,

Metric thread ring gauges: M2-M1000

Trapezoidal thread plug gauges: Tr3-Tr1000,

Trapezoidal thread ring gauges: Tr3-Tr1000

Cylindrical pipe thread (plug/ring) G1/16-G6in,

Imperial Whitworth thread (plug/ring) 1/4-6in

American Unified thread (plug/ring) 1/4-6in,

American trapezoidal thread (plug/ring) ACME1/2-7in

American stub trapezoidal thread (plug/ring) STUB ACME1/2-10in

Smooth limit plug gauges: Pin type 0.1mm-100mm

Smooth limit plug gauges: Semi-shear type 50mm-180mm, Smooth limit ring gauges: 2mm-180mm

Special ring gauges for dial indicators: 10mm-380mm

Calibration plates: Step 2mm-400mm

Morse gauges with flat tail: 0-6#

7:24 taper gauges: 30-80#

Morse test bars: 0-6#

Metric test bars: 80-200#

Can also produce various non-standard gauges and inspection tools according to customer needs.