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🛠️ Elevate your cylinder finish game — don’t get left behind!
The Brush Research GB31424 FLEX-HONE® is a 3.25" diameter, 240 grit silicon carbide honing tool designed for mild steel, stainless steel, cast iron, and softer ferrous materials. Its patented oversized, flexible abrasive design ensures self-centering, self-aligning, and self-compensating action for consistent, high-quality finishes. Perfect for deburring and finishing hydraulic, pneumatic, engine, and brake cylinders, it produces an optimal oil-retentive crosshatch pattern that enhances seal life and performance. Made in the USA by the original FLEX-HONE® inventors, this tool is a must-have for professional machinists and engine rebuilders seeking precision and efficiency.

















| ASIN | B002XUL1F8 |
| Best Sellers Rank | #10,232 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Flex Hones |
| Brand Name | Flex-Hone |
| Bristle Type | Abrasive Globule Bonded To Flexible Nylon Filament |
| Color | Gray |
| Compatible Material | Other Softer Ferrous Materials, Stainless Steel, Mild Steel, Cast Iron |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,859) |
| Global Trade Identification Number | 00843469143396 |
| Grit Material Type | Silicon Carbide |
| Grit Type | 240 Grit |
| Included Components | GB 3-1/4" (83MM) 240SC FLEX-HONE |
| Item Diameter | 3.25 inches |
| Item Dimensions | 13.5 x 5.1 x 5.1 inches |
| Item Dimensions L x W | 13.5"L x 3.25"W |
| Item Type Name | Brush Research GB31424 FLEX-HONE®, 3-1/4" (83mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials |
| Item Weight | 10.4 ounces |
| Manufacturer | Brush Research Manufacturing |
| Material Type | Silicon Carbide |
| Model | GB31424 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Part Number | GB31424 |
| Recommended Uses For Product | Deburring, Finishing |
| UPC | 600717230037 843469143396 |
| Unit Count | 1 Count |
| Warranty Description | Manufacturer Warranty |
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