Features: 1.Necessary for the removal of vertically separated 2?stroke and 4?stroke crankcases. 2.Safely pushing the crank assembly out of the case halves, easy and fast to operate. 3.With adjustable arms, it can be used on various of bolts patterns. 4.Comes with 8mm/0.3in and 6mm/0.2in mounting bolts, simple to mount. 5.Made of high quality iron material, high strength, anti-corrosion and durable. Specification: Condition: 100% Brand New_x000D_ Item Type: Crankcase Splitter_x000D_ Material: Iron_x000D_ Color: Black_x000D_ Instructions:_x000D_ Must have tool to disassemble your crankcase!_x000D_ Step 1: Place center of splitter/Separator over exposed crank end. Back out threaded shaft until the splitter sits over crank and arms are parallel and equal distance from case._x000D_ Step 2: Using supplied 6mm or 8mm bolts, attach splitter arms evenly spaced around the crank and attach arms to the crankcase. (Occasionally only two arms will be needed; if so, space evenly.)_x000D_ Step 3. It is important that the splitter is properly aligned with the crank and the arms are parallel with the case._x000D_ Step 4. Make sure all bolts are removed from the crankcases._x000D_ Step 5. Using a 17mm socket or wrench, carefully tighten threaded shaft until case clears crank._x000D_ _x000D_ Important: as the bike has been together for a while, things could get stuck together, you need to be very careful, not only make sure to apply the force evenly and gradually increase the force (trick is to use small hammer give a gentle taps), otherwise, you will risk breaking the splitter's arms or your crankcase.