Avenger AV-54024-5 Cordless machine saw Blade, 5-3/8-inch by 24 tooth,20mm arbor with 10mm adpater bushing, C-2, ATB, 5-Blade pack 5-PACK SET Fits most portable power saws with a 20mm arbor and a 10mm adapter bushing C-2 professional grade carbide Tooth Grind: ATB Max RPM: 9,500 rpm