Home Products disc harrows kinze blades blades 3 Available Products SALE SH143556 - 20" Smooth Blade 20" dia. For Mach Till™ 201, 261, 302, 331, 362, 401, 412. ... SALE SH143557 - 20" Notched Blade 20" dia. For Mach Till™ 201, 261, 302, 331, 362, 401, 412. ... SALE SH143553 - 20" V-Notched Blade 20" dia. For Mach Till™ 201, 261, 302, 331, 362, 401, 412. ... 3 Available Products