Flex Hone 3 1/2" Std. Duty Eng: The GB Series Flex-Hone tools are designed for bore diameters from 3-1/4" thru 4-5/8" and are 13 -1/2" OAL. These standard duty Flex-Hones tools are commonly used to finish and deglaze block cylinders or liners and represent a tremendous value on a cost per cylinder basis. Additional abrasive types and grits are available.

Warning: This product may expose you to chemicals including lead which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov