MNA 45 Degree Lock Miter Router Bit 3-Piece Set, for 1/2”, 5/8”, 3/4” Cutting Height, 1/4 Inch Shank. Easy to Create Lock Miter Joint

hard to use and set up.

Just what I ordered!

Put them in the chuck, start the router and the rest is a cake walk.

Received the set today. Came nicely packed. Cardboard box with a plastic insert and cover. Not a fancy wood box but should do for a while. Had some 5/8 pine to run. Mounted the 3/4 sized bit in the router table. Adjustment was pretty easy. Set the height using the midpoint of my workpiece and eyeballed the fence into position. Fine-tuned the fence position running the stock vertically that the bevel ended at the stock edge. Ran the complementary piece and the fit was off slightly. Raised the bit 1/64 and moved the fence forward the same amount. I hit the magic combination for my material. The bit cut cleanly and the pieces glued up beautifully. Take your time with setup and use featherboards. Have enough spare material to test during setup. Youll be pleased with the results. These bits are a good value.

I have been curious about this type of miter joint for some time and when a friend asked me to build an urn for her husband who passed, I knew I needed something with a nice, seamless joint. I pulled the trigger and purchased this set to give it a go. If Im being honest, it is quite intimidating the first time you go to use these bits, but after watching a couple of YouTube videos it became clear how to best set up your router table/fence. I do recommend trying it out on spare wood before you dig into anything expensive because the joint may not line up the way you expect and you will need to readjust. These bits cut right through my wood with ease and I make sure to clean the pitch off after every use. They have held up well so far. I am a hobbyist, so I cannot confirm how they would hold up for professional use. I would definitely recommend these to my fellow hobbyists, just make sure you learn the best way to measure setup before just diving in. I only gave it four stars just due to the whole setup challenge you will face, its not a know on the product itself. Cheers and good luck!

They look well constructed, but haven’t had the opportunity to use them yet.

Did what I needed and good price

They arrived in good time and in good shape. I have yet to have an opportunity to use them.

No instruction sheet. Needed to watch a competitor’s video to set up. Other than that it cuts clean in cherry end grain.

I ended up using this on White Oak wood and Hard Maple wood to allow for a flawless corner in my kitchen. Overall the corners turned out amazing but it took a ton of work to align on my routing table. I wish the router bit had a bearing or something similar as most tongue and groove bits do. If it did have this then you could just center your fence to this bearing and that would be it for alignment. However this set does not have that so you end up using a ton of scrap wood to get the settings dialed in. When you do though the lock is amazingly durable and impossible to tell that the two boards are joined. I am extremely happy with the finished product just frustrated with the initial setup. One thing I did that I would highly suggest is to keep some pieces of wood after routing them and dialing in the settings so that in the future you can just set the table to match these patterns again. This means that you really wouldnt have to go through this hassle every time after setting it up initially. Overall I am very happy with the outcome and I would buy this bit set again.