Diamond Products Core Cut26" x .165 x 1" Core Cut OPT Super PRO Cured Concrete (Hard Aggregate) Wet Blade OPTC4100XDiamond Products Core Cut OPT Super PRO Concrete - OPTC4500X.Diamond Products Core Cut OPT Super PRO Aspault Overlay Concrete - OPTC5500DXFEATURES: .375" Diamond Depth. Very high quality Diamonds with a taller segment to lower your cutting costs. 1" arbor drive w/ drive pin hole standard. Made for 35 HP saws and larger. These particular blades speced as OPTC4500X are for cutting cured concrete and speced OPTC5500DX for cutting aspault over concrete, green concrete or just asphalt. If you need a different size or arbor, Harder or Softer Bond Spec, or just help answering questions call for details about getting the blade best for you. Diamond Products 26" x .165 x 1" Core Cut OPT Super PRO Cured Concrete (Hard Aggregate) Wet Blade OPTC4100X