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This guide is for masons and construction professionals working with concrete blocks. The Bon Tool Line Stretchers offer a heavy-duty solution for easily setting and maintaining consistent line tension when laying blocks, ensuring uniform courses. A minor caveat is that they are sold in pairs, which might be an initial cost consideration for single-use scenarios.
| Model Part Number | 11-284 |
|---|---|
| Brand | Bon |
The Bon Tool Line Stretchers are adjustable and can accommodate block sizes from 4 inches up to 12 inches wide.
They are made from durable cast aluminum.
No, the Bon Tool Line Stretchers are sold in pairs.
You adjust them by simply loosening the wing nut, sliding the stretcher to the desired position for your block width, and then retightening the wing nut.
While they can be used by DIYers, they are designed with heavy-duty construction for professional, daily use on job sites.
Always wear eye protection when using these line stretchers, especially when working with masonry materials.
Ensure the wing nut is tightened sufficiently. Check that the sliding mechanism is clean and free of debris that might prevent it from locking.
Loosen the wing nut completely before attempting to slide the arms. If sticking occurs, clean the sliding surfaces and apply a light lubricant if necessary.
Verify that the stretcher arms are fully extended or retracted to securely grip the block width. Ensure the block edges are relatively clean and flat.
Setup:
Compatibility:
These line stretchers are designed to work with standard mason's lines and are compatible with concrete blocks ranging from 4 inches to 12 inches in width. They are intended for professional construction use.
Care:
