MK Diamond 151762 4-1/2-Inch Dry Cutting Continuous Rim Turbo Rim Blade with 5/8-Inch or 7/8-Inch Arbor for Masonry Supreme grade General purpose blade 4 1/2" diameter 4 1/2" diameter 7/8 to 5/8" arbor Continuous rim Suited for brick, block, concrete tile Fast cutting Long life