Jackson Safety 14785 Multi-trammel Pipe Layout Tool

Product Description

The JACKSON SAFETY 14785 is a multi-trammel pipe and structural steel layout tool designed for welders, pipefitters, and ironworkers who need fast, accurate scribe lines without complex math. The X-shaped frame works with a calibrated angle protractor and a triple-jointed marked arm to set tees, wyes, crosses, elbows, and lateral arrangements at any angle. A soapstone crayon is included for direct marking on metal surfaces. The tool handles round pipe and structural steel members from 1.5 inches up to 18 inches in diameter or width, and it operates right-side up or upside down.

This contour marker is built for structural steel and piping layout work on fabrication floors, job sites, and pipe shops. It suits any application where pipe joints, intersecting members, or angled connections need to be scribed quickly and cut accurately the first time. By eliminating the cut-and-test method, it reduces material waste and speeds up the fitting process across a wide range of pipe sizes and connection geometries.

Key Features

• Covers pipe and structural steel members from 1.5 inches to 18 inches diameter or width
• X-shaped frame with calibrated angle protractor for precise angular layouts
• Triple-jointed marked arm and bracket supports tees, wyes, crosses, and elbows at any angle
• Operates right-side up or upside down for flexible positioning on the workpiece
• Includes soapstone crayon for direct marking on metal
• Single-unit tool eliminates the need for complicated layout calculations

Compatibility

Designed for layout and scribing work on round pipe from 1.5 inches to 18 inches in diameter and structural steel members up to 18 inches, covering a broad range of pipe fitting and steel fabrication applications.

Installation Notes

This tool is used by pipefitters, welders, and ironworkers during the layout and fit-up phase, before cutting or welding begins. Ensure the workpiece is secure and stable before scribing. Follow applicable codes such as ASME B31 piping standards or applicable structural steel fabrication procedures for final joint preparation and fit-up inspection. The soapstone marks should be verified against approved drawings before any cuts are made.

Technical Specifications

• Pipe Diameter Range: 1.5 to 18 inches
• Structural Steel Range: Up to 18 inches
• Includes: Soapstone crayon
• Unit of Measure: Each
• Minimum Order Quantity: 1
• UPC: 626053604875

Standard Information

• Brand: JACKSON SAFETY
• Manufacturer Part Number: 14785