Diesel TW150DHB Parts Home / Timberwolf Diesel Chipper parts / Diesel TW150DHB Parts / BO428 - M12x30 C/sunk Socket Bolt / Roller Blade TW 125/150/190 BO428 - M12x30 C/sunk Socket Bolt / Roller Blade TW 125/150/190 BO428 - M12x30 C/sunk Socket Bolt / Roller Blade TW 125/150/190 £1.46 Information BO428 - (014-0810) M12x30 Countersunk Socket Bolt In-Feed Roller Blades , for the Timberwolf TW 125PH, TW 150 models & TW 190 models Wood chippers. Related Products 0325M - In feed Roller Blade for Timberwolf 125 & 150 models £33.22 1362M - Roller Hex Body £110.90 1948MH - Roller Blade 190 £36.59 RBK1 - Roller Blade & Bolt Kit 125/150 £200.00