This 1/2" drive 64mm REAR differential pinion bearing nut tool by Hi-Caliber Powersports Parts fits the 2003-2005 Honda TRX 650 Rincon 2006-2017 Honda TRX 680 Rincon four-wheelers. It is a necessary item for removing the pinion gear bearing lock nut on the rear differential. It is constructed of 100% top quality cold rolled carbon steel, with a hardness of HRC 37. This high quality, heat treated steel ensures lasting durability and strength for repeated use. Unlike other manufacturers, the Hi-Caliber Powersports Parts tool features a knurled finish for a better grip when turning by hand. This quality tool replaces Honda OE part numbers 07916-MB00001 and 07916-MB00002, retailing at $204.75. This order comes complete with a FREE HI-CALIBER POWERSPORTS PARTS & G&H DISCOUNT ATV SUPPLY DECAL! *PLEASE NOTE: Tools are not returnable for a refund.