Hey! So, the Lumberjack Tools 1" Commercial Log Tenon Cutter (TAC1000) can definitely cut tenons on square stock.

Even though it's mainly designed for logs or cylindrical wood, our research shows that lots of folks use it for square stock too. It's got that flexibility and precision that woodworkers love.

You might want to know though, the TAC1000 might not come with a 1" drill bit included. It seems like the manufacturer recently might've changed things up and stopped including it.

Some other models used to come with drill bits in the package, but apparently, that's not always the case anymore. But don't worry! Most compatible bits are sold separately, so you'll have the chance to pick one that suits your needs and fits your drill.

As for performance, the TAC1000 really gets high marks for being durable and precise. It fits most drills without any hassle and delivers clean cuts, according to our research.

Whether you're just doing some DIY work or tackling more intricate projects, it's a solid tool that many find worth having.

Just a heads-up: It's always good to double-check with the retailer about what's exactly in the box since package contents can differ depending on where you're buying it from.

So, if you're working with square stock, the TAC1000's got you covered. Even though it might not include a drill bit, its overall quality and reliability make it a great choice for your woodworking projects!