My experience is more woodworking than gun building so I might approach things differently than some. I really like the ashley Iles range of tools. I only have a couple of their chisels and several carving tools. Tools for working wood carries them. They are similar priced to other premium brands. Honestly the USA buck bros chisels that home depot use to carry take a pretty good edge. Not as refined as premium brands but I've used them a lot in woodworking. Sharpening is more important than the brand of chisels. I use diamond plates and follow Paul Sellers teaching for the most part. Mary May is a very accomplished wood carver (not guns mind you but she is very talented) and she has some videos on sharpening as well. Another tool that I could recommend would be an Auriou rasp. These are very expensive but really nice tools.