Super Heavy Duty Large Diameter Flex-Hones

Order by bore size
The Extra Heavy Duty GBDX Series Flex-Hone tools are designed for bore diameters from 19" thru 36". They are constructed using a steel drum with replaceable honing sections allowing one drum to cover a range of bore diameters and to allow multiple grits or abrasive types. Shaft diameters range from 3/4" to 1-1/4", depending on drum diameter.

Catalog Number	Drum Diameter	Section	Number of Sections on Drum	Shaft Diameter
GBDX 19" (483 mm)	11 1/2"	A	22	3/4"
GBDX 20" (508 mm)	11 1/2"	B	22	3/4"
GBDX 21" (533 mm)	11 1/2"	C	22	3/4"
GBDX 22" (559 mm)	11 1/2"	D	22	3/4"
GBDX 23" (584 mm)	15 1/2"	A	29	3/4"
GBDX 24" (610 mm)	15 1/2"	B	29	3/4"
GBDX 25" (635 mm)	15 1/2"	C	29	3/4"
GBDX 26" (660 mm)	15 1/2"	D	29	3/4"
GBDX 27" (686 mm)	19 1/2"	A	36	1"
GBDX 28" (711 mm)	19 1/2"	B	36	1"
GBDX 29" (737 mm)	19 1/2"	C	36	1"
GBDX 30" (762 mm)	19 1/2"	D	36	1"
GBDX 31" (787 mm)	19 1/2"	E	36	1"
GBDX 32" (813 mm)	24 1/2"	A	44	1 1/4"
GBDX 33" (838 mm)	24 1/2"	B	44	1 1/4"
GBDX 34" (864 mm)	24 1/2"	C	44	1 1/4"
GBDX 35" (889 mm)	24 1/2"	D	44	1 1/4"
GBDX 36" (914 mm)	24 1/2"	E	44	1 1/4"

Replacement honing sections for GBDX tools are ordered in sets. Please see the product detail for more information. Other abrasive types and grits can be specified.

GBDX Replacement Sections Available For Above GBDX Fles Hone Tools
Catalog Number	Grit Size	Overall Trim
GBDX-A Section	120SC	4 1/8" (105 mm)
GBDX-B Section	120SC	4 5/8" (118 mm)
GBDX-C Section	120SC	5 1/4" (133 mm)
GBDX-D Section	120SC	5 3/4" (146 mm)
GBDX-E Section	120SC	6 3/8" (162 mm)