Review on 🪚 Freud FI102: High-Performance 4-Inch 8 Tooth Blade - Perfect Replacement for Freud & Other Biscuit Joiners! by Desmin Dickerson

After reading reviews about the fit of the Porter-Cable 557 knife (which I own), I bought this blade anyway. Using vernier calipers, I measured that the blade is about 0.01 inch thicker than the nut and flange can hold. Mandrel spacers can easily be obtained pre-cut for use. Personally, I used a piece of polyester-backed sandpaper, which doubles up easily, cut it off and lightly pressed it. A round metal spacer, 0.875" in diameter, about 1.1" OD, and 0.02" thick would be great to add to the blade. When I first used it I thought the blade would slip, but it's not. quiet compared to a standard (admittedly worn) blade I had to laugh a little at the drastic difference in cutting speed and quality The only resistance I felt was the return spring in the carpentry machine itself. A few test grooves cut in plywood and hardwood and all biscuits fit perfectly. Highly recommended. If you have a PC 557 carpentry machine, fear not.