To clean the inside of a cylinder, tube brushes are your best bet.
These manual and power-driven tube brushes handle interior tasks with a range of materials — from whisper-light for precision electronics, to strong and abrasive for tough slag removal.
Also called flue brushes, bottle brushes, and twisted wire tube brushes, these tools are designed for long, strong service in cleaning, deburring, honing and edging jobs in cylinders and blind holes.