Bute Disc Chains have released THE BIG BREAK THROUGH IN DISC CHAINS, ''Controlled working depth in every soil & season'' by adding or removing weights to each disc while the chian remain linked together and connected to your frame. Weight can varies from 68kg - 110 kg per meter all in the same chain system. Bolt on either the Sharpened Cutting Disc for heavy residue and removing weeds or the 1/4 '' standard Disc for the perfect seed bed preparation. The Bute 625 Disc chain offers 6 1/4'' Disc spacing's and Bute 850 Disc chain offers 8.50'' Disc spacing's. INTERNATIONALLY PATENT PENDING AND INDUSTRIAL DESIGNS APPLY the Bute Disc fit to Kelly Diamond Harrows and other tillage equipment. Bute Discs are renowned for longer wear and the Discs are bolted on for easy replacement while the Hook & Eye gets used over and over again. BUTE DISCS CHAIN are the best Disc Chains on the Market, pass on this information and help spread the word, thankyou from Kent Paterson.