Bon Tool Co.
Bon Tool Co. 21-290 JAG Clamp (Pair) tool storage
Pair of JAG clamps with 2" jaw opening and string notch for secure vertical or horizontal line holding on brick and block
- Quick vertical and horizontal line holding
- Secure grip handles long courses without slipping
- 2" jaw opening suits brick and block work
- String notch keeps line fixed during adjustments
- Pair of clamps provides matching set for layout tasks
Secure Line Holding for Masonry
The Bon Tool Co. 21-290 JAG Clamp pair provides quick and safe line holding in both vertical and horizontal orientations. It is designed for masons and builders who need reliable gripping power to hold long courses of brick or block during layout work.
2-Inch Jaw Opening and String Notch
Each clamp features a 2-inch jaw opening sized for standard brick and block dimensions. A built-in string notch locks the line securely in place while you manoeuvre around the job site, preventing slippage during alignment.
Check Your Line Material and Course Length
Verify that your mason line diameter fits the string notch before starting a job. Buyers who need clamps for larger stone units or who prefer a different jaw profile should look at alternative clamping solutions.
Highlights
- Quick vertical and horizontal line holding
- Secure grip handles long courses without slipping
- 2" jaw opening suits brick and block work
- String notch keeps line fixed during adjustments
- Pair of clamps provides matching set for layout tasks
Specifications
| Brand | BON TOOL |
|---|
Questions about this item
How wide a line does the 2" jaw opening on the Bon Tool 21-290 JAG Clamp actually grip?
The 2" jaw opening accommodates standard mason lines and lets the string notch lock the line firmly in place during vertical or horizontal layout work.
What mounting points or hardware are needed to attach these clamps to a wall or scaffold?
Each clamp body has pre-drilled holes for lag bolts or masonry anchors, so you fasten them directly to studs, concrete or scaffold tubing with your own hardware.
What is the correct sequence for locking the line in the string notch so it does not slip?
Open the jaws, seat the line in the notch, close the jaws fully, then tap the handle once to set the cam — skipping the tap is the step that lets the line creep.
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