Freud 12-152: 3/4 (Dia.) Double Flute Straight Bit (Eclipse Grind) Red

I made a cherry table and used it to cut mortises as well as groves the length of 6 planks. I made groves 1/2 inch deep for splines to locate the planks. The total distance would be roughly 55 feet of cutting. The bit was still sharp and cut 10 mortises 1 3/4 inch deep on the ends of the table. I believe theres a possibility that those who broke the bits tried to cut the full depth in a single pass and at too great of a speed. To cut the full 1 3/4 inch mortise I made 3 passes, which is more or less standard procedure. Using digital calipers I checked the floating tenons that fit the mortises and they measured .373 inches. .375 is 3/8 of an inch.