Reversible Finger Glue Joint Router Bit 1/2 Inch Shank, Newdeli Bearing Finger Joint Router Bits Carbide Joinery Wood Milling Cutter for DIY Door Table Cabinet Shelve Furniture

Great product

worked great

The tongue and groove bits worked well once I got used to them and made a minor adjustment. Like others I found that when cutting the groove in a full 3/4" thick board, a thin portion was lefty uncut either on the top or the bottom of the board. Positioning the bit could not eliminate it. I also noticed that the fit of the tongue into the groove was rather loose. As indicated in the detail display image for this item, the bits come with some fine adjustment shims (thin washers) that allow you to increase the bit spacing on the tongue cutting bit. By adding one washer, I was able to get a slightly large tongue that fit better in the qroove and left no extra material on the top or bottom of the board. It would have been nice if the bits came with some instructions that explained the purpose of the shims. I like many others got a zip lock bag with about 5 washers and initially wondered what these are for. I only found the answer after going back to the amazon site description of the product. I have only worked on pressure treated wood on an initial project and found that I had to go pretty slow to get a smooth cut. In general, the bits did a good job in creating a strong and solid tongue and groove joint and I am pleased with the purchase. They are a great value for the price.

Got 2 sets to turn old pallets into tongue and groove. Suprising life for the cost. Its just pine but I built a chicken coop and made all the boards tongue and groove and still am on my first set of bit.

This is the best tongue and grove bits

It is a very good product of excellent quality, I received it very quickly

Came as described. I used it to build 3 cabinet doors and it worked perfectly. I do not know how durable is but for what I needed it was ok.

Seems to work alright. I tried one of the stacked disk types and it was terrible. Vibration, uneven fingers. This one is mostly even. At least enough that the parts will glue together properly. It could be balanced a bit better, but doesn't vibrate excessively. It really needs one more tooth to be able to handle 1.5in material that I was hoping to use it for, but otherwise works.