The segmented rim is engineered with an emphasis on speed, makes for a fast cut Our segmented blade cuts through cement, pavers, concrete with rebar, natural stone, and other tough materials Every Trabo blade has a 10mm diamond rim resulting in a long life Comes complete with 1 Inch arbor and a ⅞ Inch brass reducer ring Brass reducer ring enables use with a wider variety of power tools Made from carbon steel, designed for use on trim saws, table saws, chop saws, and more Trabo 7 Inch 3 Pack Masonry Turbo Rim Diamond Metal Bond Blade for Cutting Cement, Pavers, Concrete with Rebar, Natural Stone and More, with 7/8 Inch Arbor with 5/8 Inch Reducer Ring for use on multiple tools. This multipack allows you to have spares on hand.