Direct Replacement Fit – Designed as replacement coarse grit stones and cotter pins for Powerbuilt cylinder hone deglazer #648439 and compatible cylinder hone tools.
Effective Engine Deglazing – Includes three 4-inch coarse grit (#120) stones engineered to quickly and evenly deglaze cylinder walls for proper ring seating.
Complete Ready-to-Install Set – Comes with matching cotter pins to ensure secure installation and reliable performance during use.
Built for Shop or Garage Use – Ideal for professional engine builders and weekend mechanics tackling engine refresh or rebuild projects.
Trusted Powerbuilt Quality – Dependable automotive specialty tool components that meet or exceed applicable ANSI standards for performance and value.