This new case splitter is the fastest and easiest splitter to use. Unique design makes it easy to center the puller over the crankshaft. Grooved puller studs are fast and simple to install. Captured retaining collars in puller arms allow quick adjustment and set up. Durable tool steel body with protective black finish. Billet 6061 aluminum arms with blue-anodized finish. Includes 5mm, 6mm and 8mm threads on puller studs to fit various engine case sizes. Includes molded tray for storage and organization. Crankcase Splitter Version 2