









⚡ Hone like a pro — flawless finishes, zero hassle!
The Flex-Hone GB Standard Duty Brush is a 3.5-inch diameter, 240 grit aluminum oxide honing tool made in the USA. Engineered for block cylinders and liners, it features a self-centering, self-aligning design that ensures consistent, high-quality finishes while reducing total cost of ownership. Ideal for finishing and deburring softer metals like aluminum and Nikasil-coated surfaces, this tool delivers professional-grade crosshatch finishes in a single, efficient step.
| ASIN | B007INTIYG |
| ASIN | B007INTIYG |
| Batteries Included? | No |
| Batteries Required? | No |
| Color | gray |
| Customer Reviews | 4.6 4.6 out of 5 stars (62) |
| Customer reviews | 4.6 4.6 out of 5 stars (62) |
| Cutting Diameter | 3.5 Inches |
| Date First Available | 1 January 2024 |
| Date First Available | 1 January 2024 |
| Grit Rating | 240 |
| Grit type | 240 |
| Included components | GB 3-1/2" (89MM) 240AO FLEX-HONE |
| Item Package Quantity | 1 |
| Item Weight | 340 g |
| Item diameter | 3.5 Inches |
| Item model number | GB312240AO |
| Item model number | GB312240AO |
| Manufacturer | Brush Research Manufacturing |
| Manufacturer | Brush Research Manufacturing |
| Measurement System | Inch |
| Number of pieces | 1 |
| Part number | GB312240AO |
| Product Dimensions | 8.89 x 8.89 x 0.25 cm; 340.19 g |
| Recommended uses for product | Finishing, Deburring, Crosshole Deburring |
| Set Name | No Set |
| Size | 1/2" |
| Style | 240 GRIT |
| UPC | 843469142979 |
M**N
Did the job very well and fast, but did loose a few balls
A**I
Worked great honing the nikasil cylinders on my Yamaha GP1300r jetski
S**Y
Item works good but I can't seem to get the hatched effect yet. I'll keep trying.
R**H
we used this to hone our forklift cylinders, it worked very well. You could probably do it several times, than the little stones will be used up
R**N
Best drill bore piston
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