Interchangeable Thumb

  • Easy to install two-piece system
  • Interchangeable between different balls
  • Four locking mechanisms providing added security
  • Quickly and easily adjust your thumb size for a consistent fit and feel
  • Bottom support ring for 1-1/4″ inners to secure the slug
  • Adjustment bands allow for adjusting outer after drilling

Part Numbers:

66-430032-000 – Outer Interchangeable (black only)
66-430032-114 – 1-1/4″ Empty inner interchangeable (black only)

Download the Instruction Guide

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Interchangeable Thumb Parts
Visual representation of Outer and Inner Interchangeable Thumb sleeves with callouts for specific features.