New Dado Sets from Bosch and CMT
Three new 8-in.-dia. dado-blade sets recently came on the market. Bosch introduced two, one with 24 teeth and one with 40 teeth. CMT introduced a 12-tooth set. All can cut dadoes up to 1-3/16 in. wide. I gave each one a cutting test in my shop.
As a basis for comparison to other dado blades, I followed the procedure used by Steve Latta when he evaluated 15 dado sets in FWW #176. I tested each blade by cutting melamine and veneer plywood. The plywood was cut across the grain of the face veneer.
I made up samples of each material, 3/4 in. thick by 12 in. wide by 16 in. long. I then set up the dado set to cut a 3/4-in.-wide by 1/4-in.-deep dado with each pass, making 22 passes on each sample of material for a total of 44 cuts with each blade.
I evaluated each cut for tearout on the face…