Woodpeckers 2616 and 1812 combine the size of a carpenter's framing square with the precise construction of a furniture maker's try square. The reinforced beam lets the squares stand on their own and provides an accurate edge reference you'll never get with a framing square. They're the ideal tools to reach for when doing critical layout work on sheet goods and when setting up track saw cutting stations. What separates Woodpeckers squares from the rest is our one-piece central core. We mill the core from cast and ground tool plate aluminum (the most stable aluminum made). The central core gives Woodpeckers Precision Woodworking Squares an accuracy and stability not found in competitive tools.