The Whites ATV Pinion Bearing Nut Tool is a necessary item for removing the pinion gear bearing lock nut on the rear differential of Honda ATVs. Manufactured from cold rolled carbon steel for exceptional strength and durability. Constructed with a knurled finish for a better grip when operating by hand and a 1/2" square socket drive for use with a ratchet or torque wrench for accurate installation. Removes/installs pinion bearing nut Compatible with early Honda ATVs 1/2" square socket drive for use with torque wrenches Cold rolled carbon steel construction Knurled finish for better grip Fits: Honda ATC250ES 1985-1987 ATC250R 1985-1986 ATC250SX 1985-1987 TRX250 FOURTRAX 1985-1987 TRX300 2WD FOURTRAX 1988-2000 TRX300 4WD FOURTRAX 1988-1998 TRX350 1986-1987 TRX350ES RANCHER 2WD 2000-2005 TRX350FE FOURTRAX RANCHER 2000-2006 TRX350FM 4WD RANCHER 2000-2006 TRX350TE RANCHER 2000-2006