PipeMaster Contour Gauge P-T1375 (1-3/8 in Tube) - Precise Pipe

In this review of the PipeMaster Contour Gauge P-T1375 the bottom line is simple: this tool is for welders and fabricators who need fast, repeatable contour templates for 1-3/8 in tube work. It excels at producing accurate coping lines so joints fit tight without repeated trial cuts. The review focuses on real shop use: the spring temper stainless steel pins capture complex curves, the 6061 aluminum inner core keeps the instrument rigid yet light, and the rugged ABS housing stands up to knocks on the bench or in the trailer.

Key Features

• Size fit: Designed specifically for 1-3/8 in tube and 34.93 mm O.D. metric compatibility to ensure you pick the correct template for your tube size.
• Pin construction: Spring temper stainless steel pins provide durable, accurate contour capture for repeated use without deforming.
• Inner core: The 6061 aluminum inner core keeps the gauge straight and lightweight so it is easy to handle on awkward joints.
• Durable housing: Rugged ABS housing protects the mechanism in busy shop and field environments, reducing risk of damage between jobs.
• Easy layout: Simple press, transfer, and trace operation saves time and reduces waste by eliminating trial cuts and excessive grinding.
• Application focus: Built to assist with automotive, marine, and industrial welding projects where precise contour fits matter for strong joints.

Who It's For

Fabricators, muffler shops, custom exhaust builders, and anyone who regularly fits tube to tube or tube to pipe will appreciate the P-T1375. It is most valuable for those who need consistent templates for repetitive joints and want to cut down on rework and material waste.

Hobbyists and occasional users will also find it useful, but those who work with many different diameters should consider buying a set or the model that matches the full range of sizes they use rather than this single-size gauge.

Pros & Cons

Pros

• Precise fit for 1-3/8 in tube thanks to the snug pin profile and metric O.D. match.
• Durable construction with stainless pins and a 6061 aluminum core for long-term shop use.
• Easy-to-use layout process that saves time and reduces material waste during welding and fabrication.
• Rugged ABS housing protects the tool during transport and on the workbench.

Cons

• Single-size design means you need multiple gauges or a kit to handle a wide range of tube diameters.
• Precision depends on careful transfer and tracing; poor marking technique will still require some fitting.

Specifications

Model	P-T1375
Tube fit	1-3/8 in (34.93 mm O.D.)
Pin material	Spring temper stainless steel pins
Inner core	6061 aluminum
Housing	Rugged ABS
Primary use	Pipe and tube contour fitting for welding & fabrication

Our Verdict

The PipeMaster Contour Gauge P-T1375 is a solid, purpose-built tool for professionals who work with 1-3/8 in tube and need reliable contour templates. Its stainless pins, aluminum core, and ABS housing make it durable and easy to use, and it delivers real time savings by reducing rework. Buy it if you frequently fit this tube size; consider additional sizes if your projects cover multiple diameters.

Frequently Asked Questions

Can this gauge be used on metric tubes?
Yes; the P-T1375 is compatible with a 34.93 mm O.D. size, giving metric compatibility for this tube diameter.

Is the tool durable enough for daily shop use?
Yes; spring temper stainless steel pins, a 6061 aluminum core, and rugged ABS housing are built to withstand regular shop and field conditions.

Will it eliminate all test cuts?
It significantly reduces trial cuts and grinding, but accurate transfer and careful tracing are still required for a perfect final fit.