WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.
I have the Rockler dovetail jig set up which is the easiest system I've ever used and the Rockler bits are made to the demanding specs that dovetailing requires. I had one snap and the shank a couple years back which is when I learned about their guarantee against such failure.
If you're looking to replace the bit used with the Rockler dovetailing jig for making half-blind dovetails, use the 14 degree bit (no. 29961) instead. If possible, also recommend finding a dedicated 8mm collet for your router as the adapter can get stuck making removal of the bit difficult.
What is the length of the cutting edge? I've had a rockler thru dovetail jig for 13 years or so and I'm finally getting around to trying it out. It says to use a 1/2 " 8 degree dovetail bit. Does the length of the cutting edge have to equal the thickness of the stock you"re cutting into? I'm using 3/4 and it won't extend from the router long enough to reach that far down in the jig. Thanks.