Hi quality precision Hi-ATB blades are known to be the cleanest cutting with the least amount of tearout in plywood, crosscuts in splintery hardwoods, melamine, and veneers, etc., but are also known to have the shortest edge life due to those sharp pointy tips that are more prone to abrasion than the chamfered corners of a triple chip grind. The same features that make the Hi-ATB blades cut so cleanly are also their weakness….they’re great for the volumes that most hobbyists use but not a good choice for higher commercial volumes. (examples: CMT 210.080.10, Infinity 010-080, 010-060, Freud LU80, LU79TK, Forrest Duraline)
A triple chip blade (TCG) can also do do a nice job with brittle materials like melamine, plastic, laminate flooring, prefinished flooring, teak, veneered plywoods, metals, and is also a very durable grind, so is an excellent choice for high volumes of those materials or for anything abrasive that tends to degrade edge life. (examples: Infinity 010-380, Freud LU97, LU98, LU82, CMT 225.080.10)
Which is best is really a matter of your needs and volumes.
Last edited by knotscott; 04-18-2011 at 01:15 PM.