In Xanathar's Guide to Everything, p. 85, it lists the following as one of the things you can do with Woodcarver's Tools:
Craft Arrows. As part of a short rest, you can craft up to five arrows. As part of a long rest, you can craft up to twenty. You must have enough wood on hand to produce them.
Are the any rules that allow a PC to craft crossbow bolts, similar to the above?