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🛠️ Elevate your finish game — flawless surfaces, zero hassle!
The Brush Research GB31212 FLEX-HONE® is a 3.5-inch diameter, 120 grit silicon carbide abrasive tool designed for precision honing and deburring of mild steel, stainless steel, cast iron, and softer ferrous materials. Its patented oversized, self-centering design ensures consistent pressure and alignment, producing an oil-retentive crosshatch plateau finish that enhances seal life and engine performance. Made in the USA by the original inventors, this tool is a must-have for professionals seeking efficient, high-quality surface finishing and deburring in hydraulic, pneumatic, and automotive applications.
| ASIN | B002XUL1DK |
| Best Sellers Rank | #4,972 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Flex Hones |
| Brand | Flex-Hone |
| Brand Name | Flex-Hone |
| Bristle Type | Abrasive Globule Bonded To Flexible Nylon Filament |
| Compatible Material | Other Softer Ferrous Materials, Stainless Steel, Mild Steel, Cast Iron |
| Customer Reviews | 4.8 out of 5 stars 2,420 Reviews |
| Grit Material | Silicon Carbide |
| Grit Material Type | Silicon Carbide |
| Grit Number | 120 |
| Grit Type | 120 Grit |
| Included Components | GB 3-1/2" (89MM) 120SC FLEX-HONE |
| Item Dimensions | 13.5 x 5.1 x 5.1 inches |
| Item Weight | 0.71 Pounds |
| Manufacturer | Brush Research Manufacturing |
| Material | Silicon Carbide |
| Material Type | Silicon Carbide |
| Number of Pieces | 1 |
| Recommended Uses For Product | Deburring, Finishing |
| UPC | 843469142832 |
| Unit Count | 1.0 Count |
| Warranty Description | Manufacturer Warranty |
T**O
Five stars
The FLEX-HONE® is a game-changer for surface finishing! The 240-grit silicon carbide abrasive works flawlessly on mild steel, stainless steel, and cast iron. It delivers a smooth, uniform finish while removing burrs effortlessly. Durable and easy to use—highly recommended for professionals and DIYers. Consistent performance and great value. Five stars
A**E
Engine Performance Booster
Being a motorsport engineer, the flex hone is my go-to for ensuring peak engine performance. I never skip the step of running the engine with this tool before reassembly, especially when honing isn't fully done. Its precision and efficiency elevate the process, delivering flawless results. I swear by the flex hone for a seamless and effective engine reassembly routine.
D**S
Perfect Tool for Smoothing Various Metal Surfaces
I recently tried out the Brush Research GB41824 FLEX-HONE® in 4-1/8" diameter with 240 grit, and I am amazed by its performance. This tool is ideal for working on mild steel, stainless steel, cast iron, and other softer ferrous materials. The results were fantastic – the surfaces were smooth and polished to perfection. I love how versatile this FLEX-HONE® is, making it a valuable addition to my workshop. I highly recommend it to anyone looking to achieve professional results with ease.
A**R
Excellent value and quality
Worked perfectly for my rebuild
G**E
Engine rebuild
Works great rebuild my Laverne did a great horning job must need
P**K
Perfect Finish Every Time
Used this to deglaze cylinders on a cast iron engine block. Left a nice crosshatch pattern and removed just enough material without overdoing it. Very forgiving and easy to use with a hand drill. Great tool for anyone doing rebuilds at home. Highly recommend.
J**K
Perfect
Worked perfectly to declare my block
R**B
Love it!
Thought I would have to take the block to a machine shop, but I'm very pleased with how it turned out. Used this with the Flex-Hone oil and the N55B30 engine cylinders don't have any more rust, are nice and sparkly clean with a beautiful cross-hatch. Great product.
Trustpilot
2 days ago
1 month ago