This router bit is not worth your investment. It couldn't even hold up for one project. The cut was uneven and caused a lot of issues. One pro is that it arrived quickly. One con, however, is that it is not up to the standards of the Industrial and Scientific category. Save your money for a better quality router bit.
Pros
Efficient and precise cutting with strong, sharp flutes
Cons
Requires a high level of skill and experience to handle safely and effectively
The project I ordered this for needs a 1.25 inch cut to stock. Recutting the shaft with a shorter knife will scratch the part that has already been cut. The cutting edge of this drill is specified as 1.25 inches. It's actually 1.088 inches. While the flutes are 1.25 inches, the cutting edge is 1.088 inches. I didn't actually use them because I really needed 1.25 inches.
Pros
Top Quality Industrial CNC Carbide Milling Machine
The Yonico 31340-SC 5/16" works as expected and makes a clean cut and dovetail joint on the Leigh D4R router guide. When purchasing an up spiral router This is a double flute straight cutter that comes with a Leigh pilot cutter designed to handle a lot of small "overshoots". This is NOT Lee's fault, it's the way straight flute cutters cut. Straight bits cut , splitting wood. Upward twist drills cut, cutting through the wood and throwing the scrap up and away from the next cut. The scrap thatβ¦