Amana Tool - 45475-S Carbide Tipped Flush Trim Plunge Template 3/8 Dia x 1/4 Sh

Should preface that mesquite is the wood being used to review this bit, but it only lasted for about an hour of cumulative use before the bearing was no longer reliable. Will still serve just fine in the router table taking tiny bites on pieces that can use the fence as a guide, but wont be using this one for template work anymore.

These are great for the first couple of minutes. The bearings will fall apart in literally two or three minutes, and if you’re lucky, you won’t ruin your project. Start with a larger bit and bearing , and clean up your work with this bit. That way you can get at least part of it done before the bearings go bad.

There are a lot of bad reviews complaining about this bit breaking. Where the bearing is the diameter is only about 1/8 because the bearing needs to fit flush with the cutting edge. Of course it will break if you push hard against a hardwood like other reviewers said they were. Using the right tool for the right job this is amazing. I am using it for installing futures fin boxes into surfboard blanks. Needed a pattern router bit to cut polyurethane foam that is under 1/2 diameter. This bit works amazing for it. I would never expect this small of a bit to cut African iron wood, but if you have a basic understanding if stress in materials, then this bit will exceed expectations.

Used this to make dutchmans to fill in for where door hinges were. Good product for the money

Came quickly, clean cut

I bought this bit to route multiple cavities in electric guitar bodies. I should have checked the overall length of this bit before I ordered, I assumed that it would be at least the same length of its smaller sibling, the one that it is just 1/4 diameter but this one is shorter. For the router table, if you have a thin insert you should be alright, I have a 3/4 inch MDF table and this will not clear that that distance with a 1/4 inch template at all, at least not if you follow the minimum insert distance that is marked on the bit. Using it with a plunge router is also a problem, even when removing the template youre always at the maximum reach of the bit. I just thought since the 1/4 inch diameter bit is considered a delicate toy bit, this one being bigger would be at least of the same length but its not :-/

I bought 2 of these bits wich was tough to swallow at that price point but i needed to clean out some corners on a hardwood project and wanted an easier way than chisel... bit dulled almost instantly, bit snapped at the bearing before i could clean the first corner. Grabbed the second one and it lasted till 3rd corner and also snapped.... my other amana bits are great but these have a weak link

So I initially not happy because the cutting edge didn’t go all the way to the bearing… so if you have a thin template you can only cut about a 1/16” before stopping to trim the “lip” formed between the bearing and the cutting edge. Annoying, but not a deal breaker. Until the thing just snapped in half! I was routing an existing cavity slightly larger and wasn’t using much pressure. Maybe I just got a defective one, but I doubt it. The broken shaft was hollow!

Hard to find size . Good quality. A little expensive, but not many other choices.

Ignore the folks that are breaking these bits. They’re forcing the bit at slow RPM and feeding toooo faaaaasssst. Run at very high rpm and move very slow to make sure you don’t chunk out and it cuts perfectly - very nice!!! This bit is for detail routing, it’s not for removing big chunks of wood. I’m using these to do you final passes on pickup routes for tight radiuses and it works perfectly!!! Make sure you take care of the bits by cleaning them up before putting them away and they’ll last a long time.