Precision-Flex Angle Arc Marking Tool | Pipe Saddle Guide

Precision-Flex Angle Arc Marking Tool – All-in-1 Metal Fabrication & Pipe Saddle Cutting Guide

Take the guesswork out of metalworking with the Precision-Flex Angle Arc Marking Tool. Engineered for welders, pipefitters, fabricators, and serious DIY enthusiasts, this stainless steel multi-tool combines precise angle marking, arc scribing, and parallel line drawing into one compact, durable instrument. Whether you're cutting saddle joints on square tube or laying out flat steel for a structural project, this guide delivers repeatable accuracy every single time.

Made in Mainland China.

Key Features

• All-in-1 Functionality: Measure, mark, and guide bends — measuring, marking, and arc layout combined in a single tool, streamlining your workflow on every project.
• Precise 90° Angles & Smooth Arcs: Effortlessly scribe perfect 90-degree angles and smooth arcs on square tubes and flat steel — no templates or guesswork required.
• Pipe Saddle Cutting Guide: Accurately marks saddle cuts for pipe and square-tube intersections, ensuring tight, weld-ready fit-ups the first time.
• Parallel Line Drawing: Built-in parallel scribing capability speeds up layout tasks on both flat and curved surfaces.
• Premium Stainless Steel Construction: Corrosion-resistant stainless steel body withstands the rigors of professional shop and job-site use.
• Two Size Options:
  • S Type: Fits 20mm–65mm square pipe
  • L Type: Fits 20mm–80mm square pipe
• Professional & DIY Ready: Ideal for metalworkers, welders, construction professionals, engineers, and home fabricators alike.

Specifications

What's Included

• Choice 1: 1× Precision-Flex Angle Arc Marking Tool
• Choice 2: 1× Precision-Flex Angle Arc Marking Tool + 1× Marking Pen

Please Note

• Actual color may vary slightly from images due to lighting conditions.
• Please allow ±1–3 cm deviation due to manual measurement.

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Authoritative Resource

For workplace safety best practices when using hand tools and marking instruments in fabrication environments, refer to the OSHA Hand & Power Tools Safety Guidelines.

Frequently Asked Questions

Q: What sizes of square pipe does this angle arc marking tool fit?

A: The tool comes in two size options. The S Type fits square pipe ranging from 20mm to 65mm, and the L Type fits square pipe ranging from 20mm to 80mm. Choose the size that matches your most common pipe dimensions.

Q: Can this tool be used for round pipe or only square tube?

A: This Precision-Flex Angle Arc Marking Tool is specifically designed and sized for square pipe and flat steel. For best results and accurate saddle-cut markings, it is recommended for use with square-section tube stock. It is not intended for round pipe saddle layouts.

Q: Is the marking tool suitable for professional welding and fabrication shops?

A: Absolutely. The tool is crafted from premium stainless steel for long-lasting durability and corrosion resistance, making it suitable for both professional fabrication shops and serious DIY metalworkers. It helps produce precise, weld-ready cut lines to ensure tight, clean joint fit-ups every time.

Q: Does the tool include a marking pen?

A: It depends on the choice selected. Choice 1 includes the marking tool only. Choice 2 includes both the Precision-Flex Angle Arc Marking Tool and a marking pen — ideal if you want a ready-to-use set straight out of the box.