Interchangeable Thumb


The perfect fit every time!


  • Quickly and easily adjust your thumb size for a
    consistent fit and feel
  • Four locking mechanisms providing added security
  • Easy to install two-piece system
  • Interchangeable between different balls

Part Numbers:

66-430001-114 – 1-1/4″ loaded inner (black only)
66-430001-138 – 1-3/8″ loaded inner (black only)
66-430032-000 – Outer Interchangeable (black only)
66-430032-114 – 1-1/4″ Empty inner interchangeable (black only)

Instruction Guide

Support Products:

Ultimate Epoxy

Drill Bit with Preset Collar