Used rebuilt General Breaker GB5TL to suit machines 12t- 18t. This unit has seen 3 hours works since rebuild by respected dealer. Available now for less than 50% of replacement cost. We are the authorized GB dealer for Qld and full spare parts back up is available in Australia. There are many cheap Chinese import units on offer from unscrupulous individuals with some pretending that they are in fact Korean made. These items generally have no dealer or spare parts back up in this country. (THEY ARE ONLY CHEAP ON THE DAY OF PURCHASE). Stick with brands that are recognised as quality by the industry.