---
product_id: 287938122
title: "Brush Research Flex-Hone Cylinder Hone, GBD Series, Silicon Carbide Abrasive, 3-3/4\" (95 mm) Diameter, 240 Grit Size"
brand: "flex-hone"
price: "€ 236.54"
currency: EUR
in_stock: true
reviews_count: 5
category: "Flex Hone"
url: https://www.desertcart.nl/products/287938122-brush-research-flex-hone-cylinder-hone-gbd-series-silicon-carbide
store_origin: NL
region: Netherlands
---

# 240 grit silicon carbide abrasive Self-centering & self-aligning 3.75" diameter precision fit Brush Research Flex-Hone Cylinder Hone, GBD Series, Silicon Carbide Abrasive, 3-3/4" (95 mm) Diameter, 240 Grit Size

**Brand:** flex-hone
**Price:** € 236.54
**Availability:** ✅ In Stock

## Summary

> 🔩 Elevate your cylinder finish game with the Flex-Hone — where precision meets effortless perfection!

## Quick Answers

- **What is this?** Brush Research Flex-Hone Cylinder Hone, GBD Series, Silicon Carbide Abrasive, 3-3/4" (95 mm) Diameter, 240 Grit Size by flex-hone
- **How much does it cost?** € 236.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/287938122-brush-research-flex-hone-cylinder-hone-gbd-series-silicon-carbide)

## Best For

- flex-hone enthusiasts

## Why This Product

- Trusted flex-hone brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Self-Adjusting Design:** Self-centering and self-compensating for wear means zero setup hassle.
- • **Universal Fit & Flexibility:** Sizes from 4mm to 36 inches tailor perfectly to any cylinder bore.
- • **Boost Productivity & Quality:** Use by hand or CNC for fast, consistent deburring and surface finishing.
- • **Effortless Precision Finishing:** Achieve a flawless plateau finish that boosts seal life and oil retention.
- • **Versatile Application Powerhouse:** Ideal for automotive, firearms, musical instruments, and hydraulic components.

## Overview

The Brush Research Flex-Hone GBD Series is a 3.75-inch diameter silicon carbide abrasive honing tool with 240 grit size, designed for superior surface finishing and deburring. Its flexible, self-centering design ensures consistent plateau finishes that enhance oil retention and seal performance across a wide range of applications, from automotive cylinders to firearms and industrial components. Compatible with hand use or CNC equipment, it offers sizes from 4mm to 36 inches, making it a versatile, professional-grade solution for precision honing.

## Description

The Flex-Hone® tool was originally created by Brush Research Manufacturing to deglaze cylinder walls in automotive applications. Brush Research embraced the benefits of a plateau finish and pioneered the concept of plateau honing culminating in the introduction of the Flex-Hone tool in 1972. The Flex-Hone has gained many nicknames over the years and including ball hone, ball style hone, flexihone, dingleberry hone, bead brush, glaze breaker and glaze buster. Flexible honing with the Flex-Hone tool produces an oil holding cross hatch pattern and a true plateau finish free of cut, torn and folded metal. Any type or size of cylinder can benefit from the Flex-Hone®. These abrasive bead style brushes are produced in standard diameters from 4mm to 36 inches. Nine abrasive types are offered including silicon carbide, aluminum oxide, boron carbide and diamond allowing the tool to be tailored to finish any base material. A choice of 11 different grit selections are available for precise control of finish parameters. The elimination of peaks results in rapid ring seating, better oil control, reduced seepage in hydraulic and pneumatic applications and provides better seal performance and longer seal life. Successful applications include firearm chambers, shotgun barrels, musical instruments, combustion chambers, air compressors, pumps, valve bodies, valve guides, brake cylinders, wheel cylinders and the list goes on and on. Flex-Hone® tools are also very effective for deburring cross drilled holes, port radiusing and edge blending. Because of its unique construction, the Flex-Hone is self-centering, self-aligning, and self-compensating for wear so it does not require an elaborate set-up or special training. Deburring can be effectively automated and combined in the machining process to allow a complete cylinder finish in one operation or it can be employed as a secondary operation with equal results.

Review: It was delivered promptly and worked very well.
Review: En verdad cubre las espectativas que tenía del producto.

## Features

- Flexible abrasive cylinder hone for surface finishing and cross hole deburring
- Self-centering, self-aligning, self-compensating for wear
- Use by hand or in CNC equipment
- Order by actual bore size, tool produced oversized
- Sizes from 4mm to 36 inches

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002XUL1LC |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 56,290 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 25 in Flex Hones |
| Customer Reviews | 4.7 4.7 out of 5 stars (332) |
| Cutting Diameter | 3.75 Inches |
| Date First Available | 10 Dec. 2013 |
| Grit Number | 240 |
| Grit type | Fine |
| Included components | GBD 3-3/4" (95MM) 240SC FLEX-HONE |
| Item Package Quantity | 1 |
| Item Weight | 454 g |
| Item diameter | 3.75 Inches |
| Item model number | GBD33424 |
| Manufacturer | Brush Research Mfg. |
| Measurement System | Inch |
| Number of pieces | 1 |
| Part number | GBD33424 |
| Recommended uses for product | Deburring, Finishing |
| Size | 3-3/4" |
| Style | 240 GRIT |
| UPC | 843469149404 |
| Unit count | 1.0 Count |

## Product Details

- **Brand:** Flex-Hone
- **Bristle type:** Crimped Wire
- **Colour:** A47
- **Grit material:** Silicon Carbide
- **Material:** Silicon Carbide

## Images

![Brush Research Flex-Hone Cylinder Hone, GBD Series, Silicon Carbide Abrasive, 3-3/4" (95 mm) Diameter, 240 Grit Size - Image 1](https://m.media-amazon.com/images/I/31JjDQWd8FL.jpg)
![Brush Research Flex-Hone Cylinder Hone, GBD Series, Silicon Carbide Abrasive, 3-3/4" (95 mm) Diameter, 240 Grit Size - Image 2](https://m.media-amazon.com/images/I/41192QVrLrL.jpg)
![Brush Research Flex-Hone Cylinder Hone, GBD Series, Silicon Carbide Abrasive, 3-3/4" (95 mm) Diameter, 240 Grit Size - Image 3](https://m.media-amazon.com/images/I/513sGclDCbL.jpg)
![Brush Research Flex-Hone Cylinder Hone, GBD Series, Silicon Carbide Abrasive, 3-3/4" (95 mm) Diameter, 240 Grit Size - Image 4](https://m.media-amazon.com/images/I/51FcAst9eLL.jpg)
![Brush Research Flex-Hone Cylinder Hone, GBD Series, Silicon Carbide Abrasive, 3-3/4" (95 mm) Diameter, 240 Grit Size - Image 5](https://m.media-amazon.com/images/I/51I2zGpRu8L.jpg)

## Questions & Answers

**Q: How much above 4.25 will it expand?**
A: Winbfred,The tool does not expend but is manufactured oversize. Thus if you measured the hone it would be more like 4.370" but you need oversize for the globules to be pressed against the bore for the honing action. If your bore is grater than 4.290" choose the 4-1/2" hone

**Q: I have a 94mm bore, will the 95mm tool work?**
A: Should work with no problem. Most likely will get a better cleaning also.

**Q: What’s the difference in Gb and gbd**
A: GBD is the commercial version with 80% more globules along the shaft. For sizes larger than 4-1/8" the only tool that is offered by Flex-hone is the GBD style.

**Q: what size do i need for a 4.040 bore?  Thanks**
A: 4-1/8" is the correct hone , enter ASIN #B002XUL1GW for 240 grit version

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 16 February 2020*

It was delivered promptly and worked very well.

### ⭐⭐⭐⭐⭐ Review
*by D***A on 12 May 2022*

En verdad cubre las espectativas que tenía del producto.

### ⭐⭐⭐⭐⭐ Review
*by P***L on 18 January 2024*

am a believer! Almost machine shop quality hone, but done at home

## Frequently Bought Together

- Brush Research GBD33424 FLEX-HONE®, 3-3/4" (95mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials
- Brush Research FHQ FLEX-HONE® Oil, Specially Formulated Honing Oil, 1 Quart Bottle (32 fl oz)
- Permatex 81950 Ultra Slick Engine Assembly Lube, 4 oz. , Red

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/287938122-brush-research-flex-hone-cylinder-hone-gbd-series-silicon-carbide](https://www.desertcart.nl/products/287938122-brush-research-flex-hone-cylinder-hone-gbd-series-silicon-carbide)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*