At the risk of sounding dramatic, I have to say this is the portable drill press attachment I've been looking for my entire woodworking career.
We‘’ve made do with a half dozen different $50-150 versions of this for years, always complaining about the obvious shortcomings: small, unstable base plates with no good attachment methods, too much slop in the chuck as well as the guide rods, and problems keeping the two guide rods consistently aligned.
ALL of these issues are solved with this one! The linear guide bearings that the chuck assembly rides on are smooth and incredibly tight. The three post design is sheer genius. The chuck itself is mounted into another linear bearing collar and as purported in the listing has virtually zero runout or deflection, even when used on an angle.
We just put it through the paces, drilling several hundred angled baluster mortises with a 3/4" Forstner bit in oak handrails, using a custom made baseplate. I could go on and on but I would recommend this gizmo over any other out there, including the $500 Woodpeckers version, which lacks TONS of the elements that make the SpeTool so amazing.
Now, my ONLY complaints are:
-it doesn't come with the optional guide rail and stop assembly (you have to go on their website directly and purchase separately? Which seems pretty silly for two stainless rods and an aluminum plate.)
-for a $250 tool, one that is of a fairly odd shape, you'd think they would at least put it in a cheap metal toolbox or case... If it's going to live in your shop, no problem, but we are on-site finish carpenters and I can't just have this thing bouncing around on a shelf in one of our sprinters.
... in short, I think they could easily get away with selling this for $300 if it included the guide assembly and a simple toolbox! But all that said, this machine is truly a game changer, and I would never hesitate to recommend any carpenter or woodworker to purchase this. Thanks SpeTool (despite your hilariously generic-sounding company name)!