The GBD Series Flex-Hone tools are designed for bore diameters from 3" thru 8" in a twisted-in-wire construction. 3 thru 4-1/2" diameter tools are 13 -1/2" OAL. 5" thru 8" diameter tools are 17-1/2" OAL. Heavy-duty Flex-Hones are commonly used for block cylinders or liners, stationary diesel, oil and gas pipes, marine engine and may other applications. The heavy-duty tool is recommended for large diameter or high production applications.

• GBD 8" (203MM) 120SC FLEX-HONEThe GBD80012 FLEX-HONE® tool for surface finishing and deburring is designed for bore sizes between 7.501" and 8.000". Featuring 7.25" of abrasive globules which are composed of 120 grit Silicon Carbide (SC). Excellent for Mild steel, stainless steel, cast iron and other softer ferrous materials. 120 grit generally provides an Ra Finish range of 35 - 50 Microinch (.9 - 1.4 Micrometer).