Saipor 4pcs 6mm Round Nose Cove Core Box Router Bit Double Flute Round Groove Router Bit Woodworking Tool, 16-32mm Cutting Diameter

super

The shanks are 6mm. Most router bits are 1/4" (6.3mm) and your collet may not tighten enough to hold these. I dug out my 40 year-old Bosch which worked, but not my new Dewalt router. Other wise worked fine for a one-off job.

did a very good job

These are cheap, but I was surprised with how well they cut. I've not used all of them extensively, but I did get to use the 32mm one quite a bit, and I was pretty happy. The biggest ones are usually the most problematic, so I think this set is pretty solid!

Excellent quality and just what we needed .

They do what they're supposed to do.

Having purchased 1/2" to 1/4" collet reducer with same package found the shanks on the four router bits were too small to fit. Tried them on three 1/4" routers and did not fit either of them. Therefore, total waste of money and item only fit for the bin

Had to return as shaft 0.3mm too small for standard router. My mistake as it does clearly state 6mm but no grip in standard router... so useless.