Perfect Straight Lines on Pipes, Curves, and Odd Shapes. Every Single Time.

Product Introduction

“You’ve been there. You measure twice. You check your mark. You cut—and the line wanders off by a quarter inch. Now you’re standing there with a piece of pipe that doesn’t fit, a wasted length of material, and a job that’s suddenly behind schedule. All because you couldn’t draw a straight line on a curved surface.

It’s not your fault. Tape measures slip on round stock. Markers skate across the curve when you try to follow a straight edge. And the old tricks—wrapping paper, using a hose clamp as a guide—are close enough until they’re not. And ‘not’ usually means reaching for another length of pipe and eating the cost.

Now picture a different workflow. You set this tool against the pipe. You flick a switch and the magnetic base locks onto the steel with a solid, satisfying grip—no clamps, no straps, no helper holding it in place. You glance at the built-in leveling dial, roll the tool until the bubble is centered, and lock it. Then you dial in the exact angle for your cut line—30 degrees, 45, whatever the print calls for. The second dial locks that angle in. You run your marker along the edge. The line is dead straight, wrapped perfectly around the curve.

It takes longer to describe than to do.

This works on pipes up to 12 inches in diameter—the range that covers most plumbing, fabrication, and metalworking jobs. The dual-dial system means you’re not just guessing where to start and what angle to mark. You’re setting both with precision, and the tool holds them while you work. When you’re done with the mark, flip the magnetic switch off and the tool releases cleanly—no prying it off the steel.

This isn’t about making marking ‘easier.’ It’s about making every cut, every weld, and every fit-up land exactly where it’s supposed to—the first time.”

Product Features

🧲 Magnetic Base with On/Off: Lock It. Mark It. Release It.
“No clamps. No straps. No helper. Just a switch.”
“The magnetic base is powerful enough to hold the tool rock-steady on any ferrous surface—pipes, beams, plate steel. Flip the switch to ‘on’ and it grips with authority. The tool stays exactly where you put it while you mark, no slipping, no shifting. When you’re done, flip the switch to ‘off’ and it releases cleanly. No prying. No wrestling. No scratched surfaces. This single feature turns a two-person marking job into a one-person task.”
🎛️ Dual Angle Dials: Set Your Start. Set Your Line. Lock Both.
“Most marking tools give you one reference. This gives you two—and locks them in.”
“The first dial is a leveling indicator—roll the tool until the bubble is centered and you know your starting point is perfectly oriented. Lock it. The second dial sets your marking line angle—30°, 45°, 90°, or anywhere in between. Lock that too. Now your mark will follow that exact angle around the curve. Two dials, two locks, zero drift. This is the difference between ‘looks about right’ and ‘matches the print.’”
📏 Up to 12″ Diameter: From Small Pipe to Large Duct
“One tool covers virtually every round surface in the shop.”
“Handles pipes, tubes, and cylindrical surfaces up to 12 inches in diameter. That covers everything from small plumbing lines to large exhaust ducts, from handrail posts to structural columns. If it’s round and it needs a straight line, this tool fits it. No need for different marking jigs for different pipe sizes.”
🛡️ Built for Shop Life: Heavy, Solid, and Ready for Monday Morning
“This isn’t a plastic gadget. It weighs over six pounds for a reason.”
“At 6.6 pounds with a steel body and brass adjustment components, this tool has the weight and feel of professional-grade shop equipment. It doesn’t slide around on the bench. It doesn’t flex when you press a marker against it. The dials turn with smooth, deliberate resistance and hold their settings. This is the kind of tool that still works the same way after five years of daily use—and the carrying case keeps it protected when it’s not in your hands.”

Product Specifications

• Product Type    Round Contour Marker
  
• Magnet Base    On/off switch for secure attachment and easy release
  
• Angle Adjustment    Dual dials — starting angle + marking line angle
  
• Max Pipe Diameter    Up to 12″
  
• Case Dimensions    13.5 × 11 × 5 inches
  
• Weight    6.6 lbs

Packaging Includes

• Round Contour Marker × 1
  
• Carrying Case × 1
  
• User Manual × 1

🎯“You can’t afford to waste another length of pipe on a crooked mark.
Get the tool that locks on, dials in, and gives you a perfect straight line on any curved surface—first time, every time.