---
product_id: 601920065
title: "Flex-Hone 240 Grit 3-1/2\"/89mm Bore Size 0.310\" Shank Size 13.5\" OAL Block Cylinder Silicon Carbide Flex Hone"
brand: "flex-hone"
price: "$6300"
currency: MXN
in_stock: true
reviews_count: 5
category: "Flex Hone"
url: https://www.desertcart.mx/products/601920065-flex-hone-240-grit-3-1-2-89mm-bore-size
store_origin: MX
region: Mexico
---

# Self-centering & self-aligning 3.5" cutting diameter Silicon carbide abrasive Flex-Hone 240 Grit 3-1/2"/89mm Bore Size 0.310" Shank Size 13.5" OAL Block Cylinder Silicon Carbide Flex Hone

**Brand:** flex-hone
**Price:** $6300
**Availability:** ✅ In Stock

## Summary

> 🔧 Hone your edge with precision and power!

## Quick Answers

- **What is this?** Flex-Hone 240 Grit 3-1/2"/89mm Bore Size 0.310" Shank Size 13.5" OAL Block Cylinder Silicon Carbide Flex Hone by flex-hone
- **How much does it cost?** $6300 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/601920065-flex-hone-240-grit-3-1-2-89mm-bore-size)

## 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

- • **Wide Size Range:** Available from 4mm to 36 inches, covering all your industrial and automotive honing needs.
- • **Versatile Application:** Perfect for engine cylinders, valve guides, brake cylinders, and more — hand or CNC compatible.
- • **Oversized for Accuracy:** Order by actual bore size; tool is produced oversized to guarantee a perfect fit every time.
- • **Adaptive Wear Compensation:** Self-centering and self-aligning design ensures consistent performance even as the tool wears down.
- • **Precision Surface Finishing:** Achieve flawless bore finishes with 240 grit silicon carbide for professional-grade results.

## Overview

The Flex-Hone 240 Grit 3-1/2" is a premium silicon carbide abrasive honing tool designed for superior surface finishing and deburring in engine cylinders, valve guides, and brake components. Its self-centering, self-aligning, and wear-compensating features ensure consistent, professional results whether used by hand or CNC machinery. Sized to fit actual bore dimensions and available in a broad range, it’s the go-to tool for precision honing across industries.

## Description

Block cylinder silicon carbide. Valve guides.áBrake cylinders.áClutch and brake master cylinders.áCam bearings.á Lifter bores.áEngine cylinders and block liners.áDiesel cylinders.á2-cycle engine cylinders.

Review: Worked well
Review: Quick ship and decent quality.

## 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 | B002XUL1EE |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 132,731 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 64 in Flex Hones |
| Customer Reviews | 4.8 4.8 out of 5 stars (376) |
| Cutting Diameter | 3.5 Inches |
| Date First Available | 3 Feb. 2016 |
| Grit type | Coarse, Fine, Medium |
| Item Package Quantity | 1 |
| Item Weight | 308 g |
| Item diameter | 3.5 Inches |
| Item model number | GB31224 |
| Manufacturer | Flex-Hone |
| Number of pieces | 1 |
| Part number | GB31224 |
| Pattern | Cylinder Hone |
| Size | 3-1/2" |
| Style | 240 GRIT |
| Unit count | 1.0 count |

## Product Details

- **Brand:** Flex-Hone
- **Bristle type:** Crimped Wire
- **Grit material:** Silicon Carbide
- **Material:** Silicon Carbide
- **Product dimensions:** 34.3L x 13W centimetres

## Images

![Flex-Hone 240 Grit 3-1/2"/89mm Bore Size 0.310" Shank Size 13.5" OAL Block Cylinder Silicon Carbide Flex Hone - Image 1](https://m.media-amazon.com/images/I/31CInSrEVDL.jpg)
![Flex-Hone 240 Grit 3-1/2"/89mm Bore Size 0.310" Shank Size 13.5" OAL Block Cylinder Silicon Carbide Flex Hone - Image 2](https://m.media-amazon.com/images/I/41sZRrnoWHL.jpg)
![Flex-Hone 240 Grit 3-1/2"/89mm Bore Size 0.310" Shank Size 13.5" OAL Block Cylinder Silicon Carbide Flex Hone - Image 3](https://m.media-amazon.com/images/I/513sGclDCbL.jpg)
![Flex-Hone 240 Grit 3-1/2"/89mm Bore Size 0.310" Shank Size 13.5" OAL Block Cylinder Silicon Carbide Flex Hone - Image 4](https://m.media-amazon.com/images/I/51FcAst9eLL.jpg)
![Flex-Hone 240 Grit 3-1/2"/89mm Bore Size 0.310" Shank Size 13.5" OAL Block Cylinder Silicon Carbide Flex Hone - Image 5](https://m.media-amazon.com/images/I/51I2zGpRu8L.jpg)

## Available Options

This product comes in different **Pattern, Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***M on 23 November 2025*

Worked well

### ⭐⭐⭐⭐⭐ Review
*by J***H on 30 August 2019*

Quick ship and decent quality.

### ⭐⭐⭐⭐ Review
*by D***Y on 19 January 2026*

Excellent product

---

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**Shop now:** [https://www.desertcart.mx/products/601920065-flex-hone-240-grit-3-1-2-89mm-bore-size](https://www.desertcart.mx/products/601920065-flex-hone-240-grit-3-1-2-89mm-bore-size)

---

*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-03-20*