Systems and methods of beveling bowling ball holes

A method for beveling a hole of a bowling ball, comprising:

• creating a bevel at an edge of a hole of the bowling ball by removing material from the bowling ball using a rotary tool equipped with a shaping bit that extends into the hole,
• wherein the rotary tool comprises a router;
• the shaping bit comprises a router bit;
• and
• the creating comprises causing a bearing of the router bit to ride an inner circumferential wall of the hole as a cutting blade of the router bit removes material from the bowling ball at the edge, and
• further comprising placing a shield attached to the router on an outer surface of the bowling ball while inserting the router bit into the hole.