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🛠️ Elevate your cylinder finish game—because flawless surfaces aren’t optional.
The Brush Research GB31224 FLEX-HONE® is a 3.5-inch diameter, 240 grit silicon carbide honing tool designed for mild steel, stainless steel, cast iron, and softer ferrous materials. Its oversized, self-centering design delivers a precise crosshatch plateau finish that improves oil retention, seal life, and surface performance. Ideal for deburring and finishing hydraulic, pneumatic, and engine cylinders, this durable, easy-to-use tool is proudly made in the USA and trusted by professionals worldwide.
| ASIN | B002XUL1EE |
| Best Sellers Rank | #5,923 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Flex Hones |
| Date First Available | November 9, 2004 |
| Grit Type | 240 Grit |
| Item Diameter | 3.5 Inches |
| Item Weight | 10.9 ounces |
| Item model number | GB31224 |
| Manufacturer | Brush Research Manufacturing |
| Number of Pieces | 1 |
| Recommended Uses For Product | Deburring, Finishing |
| Unit Count | 1.0 Count |
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**R
Excellent value and quality
Worked perfectly for my rebuild
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.
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.
K**T
Met expectations..Very well built product..
M**E
Excelente producto
J**M
Worked well
J**N
If you play with engines you need this.
R**L
AS A HONE BEAUTIFUL!
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