Bone Tools is an add-on for managing armatures and bones in Blender. It provides batch operations for common rigging tasks, allowing users to change the bone display type for all bones in a scene simultaneously. The tool includes operators to globally hide or show armatures and toggle the visibility of armature and bone names across the entire scene.

It also includes utilities for rigging maintenance, such as an operator to delete all bones with zero weights. Users can batch rename bones sequentially with custom prefixes and automatically adjust bone roll to fix rotation issues.