Professional circular saw blades designed to cut all types of wood including hard wood&46; They have a hard body blade Hardness 39 &45; 45 HRC&44; ATB Tooth Design &40; Alternate Top Bevel&41; for cross cutting & ripping with 13&38;ordm&59;&45;24&38;deg&59; positive cutting angles&46; K10 carbide tips & expansion slots help keep the blade flat & to dissipate heat & reduce warping&46; They are anti&45;rust treated&46; The IRW10506800 Professional Circular Saw Blade has the following dimensions&58; Diameter&58; 184mm Bore&58; 16mm&46; Reduction ring&58; N&47;A Number of teeth&58; 24&46;