---
product_id: 432346534
title: "Brush Research GB Standard Duty Flex Hone for Block Cylinders, Aluminum Oxide, 3-1/2\" Diameter, 240 Grit (Pack of 1)"
brand: "flex-hone"
price: "KD 60.74"
currency: KWD
in_stock: true
url: https://www.desertcart.com.kw/products/432346534-brush-research-gb-standard-duty-flex-hone-for-block-cylinders
store_origin: KW
region: Kuwait
---

# 240 grit aluminum oxide abrasive 3.5" diameter precision fit Made in USA, durable & cost-effective Brush Research GB Standard Duty Flex Hone for Block Cylinders, Aluminum Oxide, 3-1/2" Diameter, 240 Grit (Pack of 1)

**Brand:** flex-hone
**Price:** KD 60.74
**Availability:** ✅ In Stock

## Summary

> ⚡ Hone your edge with precision and power!

## Quick Answers

- **What is this?** Brush Research GB Standard Duty Flex Hone for Block Cylinders, Aluminum Oxide, 3-1/2" Diameter, 240 Grit (Pack of 1) by flex-hone
- **How much does it cost?** KD 60.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/432346534-brush-research-gb-standard-duty-flex-hone-for-block-cylinders)

## 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

- • **Dual-Action Efficiency:** Simultaneously deburrs and finishes block cylinders in a single setup—save time, boost productivity.
- • **Versatile Compatibility:** Perfect for aluminum, brass, bronze, and softer non-ferrous materials—your go-to for diverse projects.
- • **Built to Last, Made in USA:** Long-lasting durability reduces replacement costs, proudly crafted with American quality standards.
- • **Tailored Surface Perfection:** 240 grit aluminum oxide abrasive delivers the ideal crosshatch finish for superior sealing and performance.
- • **Effortless Precision Finishing:** Self-centering and self-aligning design ensures flawless surface preparation every time.

## Overview

The Flex-Hone GB Standard Duty Brush is a 3.5-inch diameter, 240 grit aluminum oxide abrasive tool designed for finishing and deglazing block cylinders. Made in the USA, it features a self-centering, self-aligning design that ensures consistent, high-quality surface finishes while simultaneously deburring. Ideal for softer metals like aluminum and brass, this durable tool offers excellent value by reducing total cost of use and enhancing machining efficiency.

## Description

Brush Research GB Standard Duty Flex Hone for Block Cylinders, Aluminum Oxide, 3-1/2" Diameter, 240 Grit (Pack of 1)

## Features

- [QUALITY]- Proudly made in the USA. The FLEX-HONE is long lasting, lowering total cost of use compared to other brush options.
- [DESIGN]- The FLEX-HONE is manufactured to be self-centering, self-aligning and self-compensating for wear for easy use.
- [FINISHING BENEFITS]- Offered in a wide variety of grits and abrasives to allow machinists to achieve specific finishing tolerances as well as a beautiful crosshatch finish.
- [CROSSHOLE DEBURRING]- Ideal for finishing and deburring simultaneously in a single setup. Can be used in virtually any rotating spindle.
- [ALUMINUM OXIDE ABRASIVE]- Excellent on aluminum, brass, bronze, and softer non-ferrous materials. 240 AO is commonly used for deglazing Nikasil cylinders.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Number of pieces | 1 |
| Manufacturer | Brush Research Manufacturing |
| UPC | 843469142979 |
| Part number | GB312240AO |
| Item Weight | 340 g |
| Product Dimensions | 8.89 x 8.89 x 0.25 cm; 340.19 g |
| Item model number | GB312240AO |
| Size | 1/2" |
| Style | 240 GRIT |
| Item Package Quantity | 1 |
| Measurement System | Inch |
| Grit Rating | 240 |
| Included components | GB 3-1/2" (89MM) 240AO FLEX-HONE |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Aluminium Oxide
- **Brand:** Flex-Hone
- **Grit material:** Aluminium
- **Bristle type:** Crimped Wire
- **Grit type:** 240

## Images

![Brush Research GB Standard Duty Flex Hone for Block Cylinders, Aluminum Oxide, 3-1/2" Diameter, 240 Grit (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/61f9Ueb7-8L.jpg)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-06*