The Kreg KHI-Hinge Concealed Hinge Jig is pretty handy for installing concealed cabinet hinges. It comes with a 35mm Forstner drill bit that's supposed to work well with the jig for making precise hinge cup holes.
It also includes a stop collar, hex wrench, and of course, the jig itself, all designed to make installation a breeze—at least according to the manufacturer's description.
Now, according to our research, people have mixed feelings about the drill bit that comes with it. Some folks say that it gets dull kinda fast, especially when you're working with tough woods like oak or MDF, and you might need to push a bit harder to get clean cuts.
There's also been some talk about the bit overheating, which could mess up the plastic part of the jig. But on the flip side, some have had good results with softer woods like poplar, and say the bit stays sharp enough for those jobs.
If you've got a lot of hinges to install or need everything to be super precise, you might want to think about getting a more durable Forstner bit. While the included bit might not last forever with tougher materials, people still love the jig itself for its ease of use and how precisely it can handle cabinet doors.
It's a favorite among both hobbyists and pros.
In short, the jig is versatile for different hinge setups, but if you’re working with hard woods, consider upgrading the drill bit for best results. The jig itself is a solid option if precision and ease of use are your main goals.
