---
product_id: 170567829
title: "3/4'' Boring Bar"
price: "₨36058"
currency: LKR
in_stock: null
reviews_count: 8
url: https://www.desertcart.lk/products/170567829-3-4-boring-bar
store_origin: LK
region: Sri Lanka
---

# TiN-coated carbide inserts for durability High-quality alloy steel with nickel coating 3/4" shank diameter for precision fit 3/4'' Boring Bar

**Price:** ₨36058
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Elevate your machining game with precision and power!

## Quick Answers

- **What is this?** 3/4'' Boring Bar
- **How much does it cost?** ₨36058 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/170567829-3-4-boring-bar)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Nickel-coated alloy steel bar delivers unmatched toughness and wear resistance for heavy-duty use.
- • **Ready to Work:** Complete kit includes 1 boring bar, 10 CNC inserts, and a wrench—everything you need to start machining.
- • **Precision Perfected:** 3/4" (20mm) shank diameter ensures exact internal boring for flawless finishes.
- • **Cutting-Edge Carbide:** TiN-coated WNMG080408 inserts provide superior hardness and low friction for smooth, precise cuts.
- • **Versatile Performance:** Ideal for finishing and semi-finishing on aluminum and other metals, supporting high-speed feeds without compromise.

## Overview

The 3/4" Lathe Internal Boring Bar S20R-MWLNR08 paired with TiN-coated WNMG432 carbide inserts offers professional-grade durability and precision. Crafted from nickel-coated alloy steel, this tool holder kit includes 10 indexable inserts and a wrench, designed for high-accuracy internal turning and finishing on metals like aluminum. Engineered for toughness and wear resistance, it supports high feed rates and delivers consistent, smooth cuts—perfect for millennial managers demanding efficiency and reliability in their workshop.

## Description

ASZLBYM 3/4" Lathe Internal Boring Bar Turning Tool Holder S20R-MWLNR08 with Indexable Carbide Turning Insert WNMG432: desertcart.com: Industrial & Scientific

Review: works well - works great used to do a Morse taper. Cuts as it should easy to change inserts. Inserts work good as well. Used only with cutting oil on manual lathe. Will definitely be trying them out on our turret lathe with coolant at some point.
Review: Good quality boring bar - Good quality, heavy boring bar. Bought this to build a large fly cutter. (it has to be used in reverse for this application)

## Features

- [Package Included]: 1pc S20R－MWLNR08 boring bar + 10pcs WNMG080408 CNC inserts + 1pcs wrench
- [S20R－MWLNR08 boring bar]: The turning tool bar is made of high-quality alloy steel with Nickel Cotated, good toughness, high hardness, strong wear resistance, durable.
- [WNMG080408 CNC inserts]:Inserts made of carbide, coated with TiN, for finishing and semi-finishing work, with high hardness, low friction coefficient, good wear resistance and chemical stability for more solidity and precise positioning.
- [Product specifications]: Cutter direction:Positive cutter, right . Size:Shank diameter 3/4“/20 mm, length 8”/200 mm.platen:HL1810, spanner L3.
- Our company specializes in providing customers with various indexable CNC inserts for high-precision turning, milling, drilling, grooving and threading and supporting high-precision cutting tools.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.6 out of 5 stars 376 Reviews |

## Images

![3/4'' Boring Bar - Image 1](https://m.media-amazon.com/images/I/61SYCgNpKGL.jpg)
![3/4'' Boring Bar - Image 2](https://m.media-amazon.com/images/I/6192YjA0VqL.jpg)
![3/4'' Boring Bar - Image 3](https://m.media-amazon.com/images/I/71+TldeQrzL.jpg)
![3/4'' Boring Bar - Image 4](https://m.media-amazon.com/images/I/61v9zkO8prL.jpg)
![3/4'' Boring Bar - Image 5](https://m.media-amazon.com/images/I/71DEFEWOh5L.jpg)

## Questions & Answers

**Q: Can this be used in a boring bar holder on a milling machine, or is it only for a lathe?**
A: If you are asking if it can be used in a boring head the answer is no. As this is a right-hand boring bar and you would have to run the machine in reverse to get it to cut. If you ran it in reverse without some sort of mod to the boring head the head would unscrew from the shank as soon as you began to cut causing a spectacular crash. You need a left-hand bar. With that you can run in forward with no worries.

**Q: is this actually a 3/4" or a 20mm, i need a 3/4.**
A: 3/4'' is the size of the shank itself. I don't think it would be a mm bigger as most common lathe/mill tools are inch instead of mm

## Customer Reviews

### ⭐⭐⭐⭐⭐ works well
*by A***R on February 20, 2026*

works great used to do a Morse taper. Cuts as it should easy to change inserts. Inserts work good as well. Used only with cutting oil on manual lathe. Will definitely be trying them out on our turret lathe with coolant at some point.

### ⭐⭐⭐⭐⭐ Good quality boring bar
*by M***E on February 4, 2026*

Good quality, heavy boring bar. Bought this to build a large fly cutter. (it has to be used in reverse for this application)

### ⭐⭐⭐⭐⭐ Great
*by R***N on December 17, 2025*

Awesome boring bar

## Frequently Bought Together

- ASZLBYM 3/4" Lathe Internal Boring Bar Turning Tool Holder S20R-MWLNR08 with Indexable Carbide Turning Insert WNMG432
- ASZLBYM 5/8" 36PCS Indexable Carbide Lathe Turning Tool Insert Holder Bit Set MTJNR1616H16 + MWLNR1616H08 + MCLNR1616H12 with CNMG 431 + WNMG 431 + TNMG 331 Indexable Carbide Turning Insert Blades
- ASZLBYM 30PCS CNMG 431 + WNMG 431 + TNMG 331 CNC Lathe Indexable Solid Carbide Turning Insert Blade for Lathe Turning Tool Holder for The Finishing of Steel

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-08*