Information provided by Freud.
ATB – Alternate Top Bevel
Tooth configuration where top bevel alternates from right to left. Top bevel can range from 10 degrees to 40 degrees. Used for crosscutting hardwoods and softwoods and general purpose cutting.
The diameter of the arbor hole.
COMB – Combination Grind
A mixture of ATB and FTG tooth design where each group of 5 teeth are led by a flat-topped raker tooth and followed by top bevel teeth alternating from left to right. Multi-purpose use.
FTG – Flat Top Grind
Teeth are ground flat on top with 0 degrees of top bevel angle. Durable and long lasting, this blade is used for ripping or general purpose.
The area cut out in the blade body in front of each tooth. The gullet is designed for chip removal. The higher the ratio of teeth to blade size, the smaller the chip size and therefore the smaller the gullet.
Hook Angle (H)
The angle that the face of the tooth makes with a line projecting radially from the center of the bore coming into contact with the tooth. Hook Angle ranges from 25 degrees to -7 degrees.
The width of a cut a saw blade makes under ideal conditions.
The thickness of the saw blade body.
TCG – Triple Chip Grind
Tooth grind where on flat-topped tooth is followed by a trapezoidal tooth that is slightly higher. The higher tooth precuts the material narrower than the final kerf, helping to eliminate chipping in brittle materials, such as chipboard and laminates.
Top Bevel Angle (T)
Angle that top of the tooth makes from side to side.