Bon Tool JAG Clamp XL Masonry Line Stretcher Pair (21-291)
Bon Tool JAG Clamp XL Masonry Line Stretcher Pair (21-291) is a Factory Order Product
Pickup available at Rhinobuild Construction Tools
Usually ready in 1 hour
Designed for masonry professionals, the Bon Tool JAG Clamp XL Masonry Line Stretcher is the robust, adjustable line‑stretching tool you reach for when laying long, straight courses. The JAG:XL is an adjustable hand clamp line stretcher with an attachable size adjuster (sold in pairs) and is built to fit the same blocks as the original JagClamp, with additional range to maximise versatility. When you need reliable grip, fast course changes, and precise line placement, this pair of JAG XL clamps is ready to perform.
Key benefits
- Secure gripping power that stays put on brick, block, fencing, and more
- String notch designed to hold the line securely in place, reducing slippage
- Quick course changes keep your workflow moving without reworking alignment
- Adjustable opening from 5/8" to 5-1/2" to accommodate a wide range of block sizes
- Includes a pair of clamps, ready to use in tandem for longer runs
Product details and scope
The JAG XL is specifically engineered as an adjustable line stretcher for masonry projects. It fits on brick, block, fencing, and similar substrates, offering versatility across various job sites. The system supports easy additions with an attachable size adjuster (sold in pairs) to tailor the grip to your exact course requirements.
Ideal use cases
- Bricklaying and blockwork where precise line alignment matters for uniform courses
- Fencing installations requiring straight, taut lines for post placement
- Long masonry runs where faster setup and stable line tension improve productivity and safety
Included in the pair
- Two JAG XL clamps (sold as a pair)
- Attachable size adjuster (sold in pairs) to fine-tune the opening as you work
Why customers choose JAG Clamp XL
With a track record of dependable performance and a design focused on practical field use, the JAG XL helps bricklayers maintain accurate line placement while speeding up course changes. It’s a purpose built tool for masonry workflows where consistent line tension and stable alignment translate to cleaner joints and smoother installs.
Payment & Security
Payment methods
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Frequently Asked Questions
Shipping
What countries do you ship to?
What countries do you ship to?
We currently ship to the United States, Canada, Australia and the UK. To enquire about shipping to a different destination, please contact us.
How long will it take to receive my order?
How long will it take to receive my order?
Standard shipping normally takes 3-5 days. Next day shipping is available on all domestic orders (for an additional charge). International shipping times depend on the products and destination (estimated at checkout).
Returns and Refunds
How do I return a product?
How do I return a product?
Items must be returned within 30 days after receiving your order. Items must be returned in the same condition in which they were received, be unworn/unused, have any tags still attached, and include all the original packaging.
How long will it take to receive my refund?
How long will it take to receive my refund?
Refunds are processed within 7 days from when we receive the item(s).





