From the Manufacturer: Using a "Combination" blade doesn't mean that you have to compromise on quality or performance. There's no compromise required when you choose CMT's ITK Combination Blades. Offered in 7-1/4" & 8-1/4" diameters for your portable saw, or 10" sizes for the table saw, these blades are great for fast, clean crosscuts or rips in lumber, plywood or composites. Designed with CMT's new Industrial Thin Kerf technology, these blades put far less load on your saw than conventional blades, delivering faster cuts and longer life for the blade and saw. And for even longer life on the job site, the portable saw blades incorporate a special carbide formula that stands up well to the occasional nail or other imperfection you encounter in harsh construction environments. Choose ITK blades and enjoy all of CMT's latest design features, including Anti-Kickback Design, Micrograin Carbide Teeth, Tri-Metal Brazing, Laser Cut Arbors and permanently-marked safety instructions. And when the time finally arrives to resharpen your CMT blade, be sure your saw service takes a look at our complete, illustrated resharpening instructions - a feature you won't find anywhere else. • 10" Diameter, • 30 Teeth • 5/8" Bore • 1FTG+4/20°ATB • 15 degree Hook • .098 Kerf • .071 Plate Inches