I bought a cheapo biscuit cutter from HF tools, wondering if I got what I paid for. I've never worked with biscuits before, but the biscuits are pretty sloopy in the kerf the cutter made. Should the biscuits be snug in the slot? What is the correct blade thickness for a 0/10/20 biscuit?

thx, Don

 

It might be a cheap biscuit joiner if the blade wobbles as it makes the cut. Be sure your piece is held firmly (preferably clamped onto a very flat surface), that the blade has come up to speed, and then quickly, but firmly press the biscuit joiner all the way into the wood and pull it back rather quickly. Don't push it in and hold it there for a long time, it will just let the blade rattle around in there giving it the opportunity to remove a bit too much wood.

You might also not realize that when a biscuit is completely coated with glue, it will expand slightly and get tighter. That's why biscuits have that compressed crosshatch type pattern on them. When the biscuit is "wet" it will grow slightly.