Step 1: Beat up chisel handle
Step 2: Badly sharpened bevel
All chisels, whether new from the factory or used, need tuning before they work well.
Step 3: Reason #1 for sharpening
Step 4: Reason #2 for sharpening
Step 5: The back of the chisel
Here’s the chisel back when I received it. You can still see the machine grinding marks left from the factory.