Flat Top (FT) If fast cutting down the grain is your priority then these circular saw blades do the job. Very fast and quick. The flat top tooth is the most efficient design for cutting and raking material out of the cut.
Alternate Top Bevel (ATB) The most common circular saw blade tooth formation. The tips are ground to alternate between a right and left hand bevel. This tooth configuration gives a smoother cut when cross cutting natural woods and veneered plywood. The alternating bevelled teeth form a knife-like edge on either side of the blade and will give you a cleaner cut.
Combination Tooth (Comb.) This type of blade is fairly rare. (4&1) These blades are designed to do both cross cutting and ripping. The teeth are arranged in groups of five - four ATB teeth and one FT -- with a large gullet in between the groups.
Triple Chip Grind (TCG) The TCG configuration is normally found on aluminium and non-ferrous cutting blades but is also excellent at cutting harder materials like laminates, MDF, and plastics. Teeth alternate between a flat raking tooth and a higher "trapeze" tooth.
High Alternate Top Bevel (HiATB) The HiATB configuration is used for extra-fine cross cutting and to cut materials surfaced with melamine, which is prone to chipping. The high bevel angle increases the knife-like action at the edge of the blade.