Jackson Safety 14775 Curv-O-Mark #6 Standard 4″ Centering Head

The Jackson Safety Curv-O-Mark #6 Standard Centering Head (14775) is a reliable, manually operated pipe marking tool designed for welders, pipefitters, and metal fabrication professionals working in demanding environments. This tool streamlines the process of marking center lines, laying out angles for butt-ins, locating points within tanks and pipe interiors, measuring declivity, and creating keyways. Its 4-inch wide Y-type head is built to match the curvature of pipes ½” in diameter and larger, providing accuracy and consistency. Fitted with a dial bubble protractor that reads in 2.5° increments, this tool allows for precise angular measurements directly on pipe surfaces.

Engineered for both workshop and on-site use, the Jackson Safety #6 is easy to operate manually. A hardened centering pin is included for effective pipe marking — simply tap it in with a small hammer or mallet to quickly mark accurate locations. Whether in industrial fabrication shops, construction job sites, or plant maintenance, this centering tool is a trusted measuring device for tasks that require accuracy, repeatability, and minimal guesswork.

Jackson Safety Curv-O-Mark #6 Standard 4″ Centering Head At a Glance

• 4″ Y-Type Head: Conforms to pipe curvature for accurate layout and center marking.
• Adjustable Dial Bubble Protractor: Built-in DSL protractor reads in 2.5° increments to mark precise angles.
• Manual Operation with Hardened Centering Pin: Designed for use with a small hammer or mallet for fast, accurate marking.
• Wide Measuring Range: Works on pipe diameters from ½” and up, covering most common pipe sizes used in the trades.
• Accurate Inside Point Location: Enables the layout of points inside tanks and pipes, making it ideal for custom fabrication.
• Portable and Durable: Lightweight enough for field use but durable enough for tough environments.

Markets

• Metal Fabrication Shops Ideal for consistent pipe layout and preparation before cutting, welding, or fitting.
• Pipeline Construction Ensures precise angle marking and layout in remote or rugged locations where repeatability matters.
• Shipbuilding Accurate declivity and angle layout is critical when marking cylindrical or round surfaces.
• Municipal Waterworks & City Infrastructure Useful for marking and laying out points inside water or sewer pipes during repairs and installations.
• Maintenance Crews in Manufacturing Plants Helps crews perform quick and precise pipe maintenance or rerouting tasks.
• Trade Schools and Training Programs An excellent teaching aid for welders and pipefitters learning how to mark and lay out pipe accurately.
• Oil & Gas Industry Used during rig construction and pipeline installations where angle precision is crucial.

This pipe centering tool gives metalworkers, pipefitters, and welders the edge in precision tasks. It’s not just about measuring; it’s about saving time and reducing error. By providing clear, repeatable markings, the #6 Standard Head helps improve weld prep and layout accuracy. Trades using tanks or cylindrical objects, like fabricators, shipbuilders, and city infrastructure crews, benefit from its intuitive layout system and durable design.

Jackson Safety 14775 Curv-O-Mark #6 Standard 4″ Centering Head Features

• Used on pipe 1/2″ to 4″ diameter or larger
• Fitted with an adjustable dial bubble protractor (DSL), manually operated centering pin

Jackson Safety 14775 Curv-O-Mark #6 Standard 4″ Centering Head Specifications

• Measuring Range: ½” to 4″ pipe diameter and larger
• Head Type: Y-type
• Head Width: 4 inches
• Length: 6.54″ (16.6 cm)
• Width: 4.65″ (11.8 cm)
• Height: 1.73″ (4.4 cm)
• Weight: 330 grams
• Type: Standard
• UPC: 626053604776

Why Customers Choose the Jackson Safety Curv-O-Mark #6 Standard 4″ Centering Head

Pipefitters and welders rely on the Curv-O-Mark #6 when accuracy counts. Whether you call it a pipe marker, center finder, or angle layout tool, it’s a staple in pipe layout work. It’s especially helpful when working with heavy-wall pipe or when centerlines need to be matched precisely from one end of a weld to another. If you’re regularly tackling layout tasks on curved surfaces, this marking head saves time, reduces rework, and helps maintain quality weld preps — all in one reliable tool.

This isn’t just another center marking jig — it’s a time-saver, a problem-solver, and a staple in every pipefitter’s kit.