Fire Brick Saw is a special saw blade designed specifically for cutting the light and porous fire bricks used inside kilns, furnaces, and fire places.  Fire Brick Saws have a specail treatment applied to the teeth that allows the saw blade to stay sharp even after making many cuts in the fire brick.  This brick saw blade will not cut cement bricks, or the dense heavy bricks used for mantles or outside the fireplaces.  They have a very specific application, and work very well for that application.  Unlike other saw blades, fire Brick Saw Blades are designed to make smooth cuts in fire brick quickly and without causing the firebrick to crumble.