The MERLIN is a layout square that combines the functions of a double square, framing square, and ruler into one lightweight, flat-profile tool. Whether you're building face frames or laying out joinery, the Merlin Square stays flat, accurate, and right where you need it.
Lay Flat Design - The only square on the market that lays complet
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absolutely stellar job from it being everything I expected...except it said expected delivery weds but it showed up tues. thanks I see more swan tools in my future
Anthony · 3 days ago
No longer need to take ruler out of a square. Genius.
The texture is different from what is expected. But easier to grip.
A
Anonymous · September 3, 2026
This is awesome. Far more superior than any cheap Chinese junk metal out there. Finally American tool worth the price. Keep it up swan tool. Can’t wait till the next new product comes.