As for a picture there are parts drawings for both the MTD and Craftsman models on the Sears Parts Direct and MTD websites. All you have to do is type in your model number and it will bring up the correct drawings.
https://www.searspartsdirect.com/mo...odelSearch&q=247.795950&searchTerm=247.795950
The sites are a bit different in that the Sears site only displays parts that are still available. The MTD site shows all the parts, but highlights in blue those that are no longer available. In most cases I think you'll find parts at the MTD site to be less expensive. The same chipper blades cost $27.73 from Sears and $20.15 from MTD.
I haven't ordered parts from MTD for a few years. I do remember the last time I bought chipper blades they were case hardened. At the time they claimed sharpening them wouldn't be a good option in that they would dull quickly once they were sharpened beyond the case hardening. They no longer make that claim on their website. As a precaution I saved all the parts I replaced just in case they became unavailable in the future.
As an FYI the Craftsman model numbers do work on the MTD website.
https://www.mtdparts.com/equipment/...redders-vacuums-parts/chipper-shredder-blades
They show the comparable MTD model.