Tooth Geometry vs. Material Type
ATB Alternate Top Bevel is primarily used for cutting hard and soft wood cross grain. Every-other tooth alternates the same way. Machines include table saws, radial arm saws, miter saws, sliding table saws and panel saws.
ATB/R Alternate Top Bevel with raker tooth is similar to above but cuts cleaner because of a flat raker tooth. This design is also more stable and balanced in the cut. Used on blades with a high tooth count for the ultimate finish in natural wood, veneer plywood and mitres.
ATB+Alternate Top Bevel Plus is used for chip free cuts in melamine. Similar to ATB but is ground with a steeper 30° angle. Designed for table saws and sliding table saws that are not equipped with a scoring unit.
TCG Triple Chip Grind, which divides the chip into three, is used for plastic laminated panels, MDF, HDF, melamine (with a scoring unit), plastics, solid surface and non-ferrous materials. This tooth style is very stable in the cut and offers the greatest strength and longest tool-life for abrasive materials. It is also used for glue-line ripping.
FT Flat Top is used for ripping blades and conical type scoring blades.