Product Description Ever have your interchangeble thumb get stuck in your ball? You’re not the only one. The new Storm Reamer is to the rescue! With a few quick turns, your interchangeable thumb will fit like it was new again! This is a must have tool for pro shop operators and serious bowlers alike.DetailsTool designed to ream out 1 3/8″ interchangeable outer sleevesAllows for smooth insertion and removal of the interchangeable thumb insertsHigh quality aluminum design with a high-grade steel blade with 4 sides to the blade for long lastingMust have for pro shops and tournament playersWorks with Turbo, JoPo and Ultimate outer sleevs