
Rockler Clamp-It Mini Assembly Square: Perfect 90° Corners for Smaller Projects
Square corners matter just as much on a keepsake box or drawer as they do on a full-size cabinet. The Rockler Clamp-It Mini Assembly Square gives you that same precise 90° reference in a compact 3" x 3" (75mm x 75mm) footprint, so your smaller builds come together straight and stay that way. It's ruggedly made, with relieved corners that keep out of your way while you clamp, drive fasteners or wait for glue to dry.
Despite its size, this little square earns its place on the bench. Screw attachment points let you fix it to jig bases and other right-angle assembly fixtures, so you can build repeatable set-ups for boxes, drawers and light frameworks. Use it on the inside or outside of a corner, mount it flat or standing up, and let it do the holding while you concentrate on a clean, accurate join.
Key Features
- Flat, square faces: Hold your parts at a precise 90° angle while you clamp, drive fasteners or wait for glue to set.
- Corner relief areas: Keep the clamping zone clear of obstructions, with a handy tape-measure reference mark on the inner corner.
- Notches and predrilled #8 screw holes: Mount the square flat or standing up, ideal for building jigs and right-angle assembly fixtures.
- Inside or outside corner use: Position it either way to suit boxes, drawers and awkward joins.
- Compact 3" x 3" (75mm x 75mm) size: Fits neatly into smaller assemblies where a full-size square won't.
- High-impact glass-reinforced ABS: Delivers the strength and accuracy you need for dependable, long-term use.
Main Applications
- Assembling small boxes and keepsake projects with dead-square corners.
- Squaring up drawers where space is tight and precision counts.
- Building light frameworks that need a reliable 90° reference.
- Creating custom jigs and right-angle fixtures for repeatable results.
- Clamping from the inside or outside of a corner to suit the join.
Specifications and Compatibility
- Outer dimensions: 3" x 3" (75mm x 75mm).
- Material: High-impact, glass-reinforced ABS plastic for strength and accuracy.
- Mounting: Notches and predrilled holes accept #8 screws for flat or standing installation.
- Corner use: Suitable for both inside and outside corners.
Ready to bring precise 90° corners to your smaller builds? Add the Rockler Clamp-It Mini Assembly Square to your cart today and assemble with confidence.
Prices may vary. Printed on September 02, 2026.