Step 1: Tools and supplies
36" wood bat blank
fine Japanese saw
Step 2: Choosing the wood
If you can't find a round blank, you can start with a blank that's square in cross section. Then chamfer the long edges in order to make it octagonal in cross-section
The blank should be about 3" longer than the final length to allow for waste at both ends
Step 3: Marking the center
At the center, use an awl to make a hole that the centers will fit into.