Brush Research BC21218 FLEX-HONE 2-1/2 Inch 180 Grit Cylinder Hone New

2-1/2" (63.5 mm ) Cylinder Hone w/ 180 Grit. Abrasive Option: 180 grit. Brush Research: FLEX-HONE. hydraulics, pneumatics and valve guides. Overall Length = 8". Designed for surface finishing and cross hole deburring in brake cylinders, wheel cylinders.