Brush Research 3 1/2" (89mm) Flex-Hone Cylinder Hone Tool 320 Grit (Silicon Carbide)
Brand: Brush Research

Working range 3.050"-3.550" (75mm-90mm). Hone is 14" long. Great for steel cylinders.

Flexible Cylinder Hone made of Silicon Carbide
Hone is Made in USA by Brush Research Manufacturing
Hone is self centering and can be used with 3/8" or 1/2" chuck drill
Perfect for bore honing and cylinder refinishing
The hone size listed on the product is the bore it is intended to be used for (or slightly smaller bore will work)