Galfre Disc Mower Replacement Blades Right Hand DX Box of 25. New, OEM Replacement disc mower blades for Galfre Disc Mowers.This kit is for a box of Right HAND BLADES ONLY (DX) 02.0012.0013.00 These high quality original blades will maintain their edge better than the cheaper aftermarket blades. These Galfre blades will also fit Bush Hog and Rhino Disc Mowers. Blades are 108MM x 48MM x 4MM with a 21 MM mounting hole. Disc Mowers have both a left and a right blade. A right hand blade is considered clockwise rotation (DX) and the left hand blade is considered counter clockwise rotation (SX). These blades have a better economic use with 2 edges so when one side gets dull, you can just flip them over and use the other side. When replacing blades, it is best to replace them in pairs to keep the balance of the rotating disc.