Tool bit capacity is 3/8" Interchangeable with KDK same series tool holders All of our KDK style tool holders fit all of the 100, 150, & 200 size bodies as they all have a 1. 75" dovetail All working parts hardened and ground

HHIP KDK-03 Type Extension turning bar combination tool holder is Interchangeable with KDK same series tool holders. Tool bit capacity is 3/8". All of our KDK style tool holders fit all of the 100, 150, & 200 size bodies as they all have a 1. 75" dovetail. All working parts hardened and ground.