The websites description.... "These bits feature four individually brazed carbide tips in a compression (upcut /downcut) design to eliminate chipping and tearout at the top and bottom of the material. Perfect for your prized hardwood, melamine and delicate veneered plywood. Top and bottom bearings allow for template and pattern routing as well as flush-trim applications."I am looking to purchase an "advanced tear out control" (TM flush trim bit.
There seems to be 2 styles:
1) compression spiral bit - an up/down cut spiral bit. I have seen such bits form Whiteside, Amana, Yonico, Eagle america. They seem to work well according to reviews. My main issue is that the cutting length is limited (no more than 1 1/8 inch) which will not really suffice for thicker table tops.
Also - the diameter is limited - which means that the angle of attack of the blades is limited as well.
Then i saw the InfinityTools Mega flush (Their website) which are doing something else - they are essentially brazing 4 carbide cutter heads on a cylindrical shaped bit with relevant angles and voids to allow the cutters to be up/down shear and for chip ejection.
Now that means that its not pure carbide....and that the cutter is NOT spiral but rather up/down shear straight cutters....
But on the flip side - they have a big bit that is 2" cutting length and 1.5 " diameter....
So do any of you have experience with these bits? couldnt find any long term objective reviews out there...
I have no experience with these bits... but they look awesome. Infinity Tools has a great warranty and return policy.