Bon Tool 11-289 Bricklayer Corner Blocks Cast Aluminum

Product Description

The BON TOOL 11-289 is a pair of cast aluminum bricklayer corner blocks designed for precise masonry line positioning at wall corners. Each block grips the wall tightly to hold the mason's line in place, maintaining accurate course alignment during brick and block installation. Weighing just 0.10 pounds per pair and measuring 0.98 inches x 0.98 inches x 0.98 inches, these compact blocks are built for repeated jobsite use without adding bulk to the tool bag. Masonry contractors and bricklayers rely on this type of block to control course layout from corner to corner throughout a project.

These corner blocks are suited for residential and commercial masonry applications involving brick, concrete block, or similar unit masonry. They are positioned at the lead corners of a wall, where line blocks must hold securely against the face of each course to produce straight, level runs between corners. The compact cube profile fits standard masonry unit thicknesses and works with standard braided or twisted mason's line.

Key Features

• Cast aluminum construction provides strength and long-term durability under repeated jobsite use
• Lightweight profile at 0.10 pounds per pair reduces fatigue during extended layout work
• Tight wall-gripping design holds line block securely at corners without tools
• Compact 0.98 inches x 0.98 inches x 0.98 inches cube fits standard masonry unit profiles
• Sold in pairs for balanced corner setup on both ends of a wall run
• Designed for professional masonry layout and course control

Compatibility

Designed as a standard-profile replacement or addition for professional bricklaying and block-laying corner block setups used in unit masonry construction.

Installation Notes

Corner blocks are installed by masonry professionals without fasteners - the block is pressed against the face of the masonry unit at each lead corner, and line tension holds it in place. Before repositioning blocks between courses, ensure the line is slack to avoid dislodging the block or disturbing the lead. Inspect the aluminum body periodically for cracks or deformation that could compromise grip. Follow applicable masonry construction standards and project specifications for layout and coursing requirements.