[Specifications and Packaging]: 12pcs TCT SAE blade size: 7-1/4" x 24-tooth.(12 pack).Each blade comes with a plastic protective cover to avoid damage from bumps and scratches when not in use. [Fitment]: Circular saw blades can be used to hardwood, plywood, softwood, composite decking, chipboard, multi-board, panels and etc. Suitable for most general construction cutting applications. [Material]: Blades made from carbon steel with TCT teeth,offers toughness, wear resistance and long life. [Advantage]: Blade has a diamond arbor to fit both round and diamond hole blade machines and maintain stability while in use. Features a tough coating release coating that reduces friction and sticking.The fully hardened steel blade body provides precise cuts with an alternating tooth design that resists bending and deflection. [Great Work]: The circular saw blade features a 24-tooth design with wider teeth spacing for increased cutting speed and efficiency, as well as excellent chip evacuation and heat dissipation.