---
product_id: 491321896
title: "9-Pack 2In Boring Head R8 Shank 1/2In Carbide Boring Bar Set Milling"
brand: "raseparter"
price: "¥44412"
currency: JPY
in_stock: true
reviews_count: 2
category: "Raseparter"
url: https://www.desertcart.jp/products/491321896-9-pack-2in-boring-head-r8-shank-1-2in-carbide
store_origin: JP
region: Japan
---

# 0.0001" micrometer accuracy R8 Shank compatibility 5/8" max offset for versatile boring 9-Pack 2In Boring Head R8 Shank 1/2In Carbide Boring Bar Set Milling

**Brand:** raseparter
**Price:** ¥44412
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your milling game with precision that commands respect!

## Quick Answers

- **What is this?** 9-Pack 2In Boring Head R8 Shank 1/2In Carbide Boring Bar Set Milling by raseparter
- **How much does it cost?** ¥44412 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/491321896-9-pack-2in-boring-head-r8-shank-1-2in-carbide)

## Best For

- raseparter enthusiasts

## Why This Product

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

## Key Features

- • **Complete Pro Kit:** Includes 9 carbide boring bars, R8 shank, and 3 Allen wrenches—everything you need to upgrade your workshop.
- • **Versatile Boring Range:** Double bar holder and 5/8" max offset let you tackle a wide variety of milling, shaping, and drilling tasks.
- • **Engineered for Longevity:** Ground adjusting screw and powered casting steel construction ensure long-lasting, trouble-free performance.
- • **Precision at Your Fingertips:** Micrometer lead screw delivers ultra-fine 0.0001" adjustments for flawless boring every time.
- • **Built for Rigidity & Accuracy:** Crafted from premium tool steel with an integrated design to maximize stability and reduce deflection.

## Overview

This 9-piece 2" boring head set with R8 shank offers micrometer-level 0.0001" adjustment accuracy, a robust 5/8" maximum offset, and a versatile double bar holder design. Made from high-grade tool steel and carbide, it’s engineered for professional-grade milling, shaping, and drilling applications. The kit includes 9 carbide bars and essential tools, delivering a complete, durable solution for precision machining.

## Description

2In Boring Head R8 ShankFeature:A micrometer lead screw provides 0.0001" direct reading accuracy and ease of adjustingDouble bar holder permits a greater boring range with out an extreme offset conditionSpecification:Head size: 2"Boring bar Hole: 1/2"Cross Hole Dia: 1/2"Maximum Offset: 5/8"Thread: 1.5"-18Graduations: 0.001/0-50Center Distance bt 2 bottom hole: 0.60"With R8 ShankPackage includes:1 x 2" Boring Head1 x R8 Shank9 x 1/2" Carbide Boring Bar3 x Allen Wrench

Review: The product is exactly what is shown. It came as expected.
Review: I did use the bore head immediately as I had a 15mm bore to cut. First, I put the head in my mill and began adjusting. Why is the head wiggling about???? It's wiggling! Is the R8 collet junk?🤔 Took the tool out and found out the collet and head are two separate pieces and threaded together about as hand tight as a two year old would be able! Threaded together by 30mm thread or so, I did not measure, but that's about what it is. Took that apart, applied RED loctite as I DON'T WANT THIS COMING APART! I could have welded I suppose? Either way I don't want the tool coming apart during a bore process. First task is to secure these two pieces together! The dial works OK but for sure has a good amount of backlash. The description states .0001" increments but on the tool itself it's stamped/laser cut .001" on the diameter. The dial is easy enough to read just make sure of your direction every adjustment. It works if you are careful! I did find the bore bar carbides to be not so sharp. Dull enough to cause a good deal of deflection. A sharp 1/2" HSS ground bar might be better! OK, so I'm expecting $2000 performance from a $70 tool. My bad! It works but sneaking up on your diameter is necessary. Also, a couple spring cuts are a good idea! I would not recommend this for a beginner/ novice. There are just too many factors that will destroy your project unless you can figure how to make stuff work. Can you redneck this tool good enough to work? Maybe!

## Features

- Head size - 2InBoring bar Hole: 1/2In; Cross Hole Dia: 1/2In; Maximum Offset: 5/8In
- Unique Design - The boring head has a ground adjusting screw designed for long lasting and trouble free use made of powered casting steel for excellent strength
- Applied Range: Used in milling, shaping and drilling machines
- Excellent Material - Made of good grade tool steel, wide holding range, integrated design maximizes rigidity and accuracy
- Packing including: 1 x 2In Boring Head, 1x R8 Shank, 9 x 1/2In Carbide Boring Bar, 3 x Allen Wrench

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09W5Q6J5F |
| ASIN  | B09W5Q6J5F |
| Batteries Included? | No |
| Batteries Required? | No |
| Customer Reviews | 4.1 4.1 out of 5 stars (5) |
| Customer reviews | 4.1 4.1 out of 5 stars (5) |
| Date First Available | 2 November 2022 |
| Date First Available  | 2 November 2022 |
| Finish | Chrome |
| Item Package Quantity | 1 |
| Item Weight | 2.36 Kilograms |
| Item model number | Does not apply |
| Item model number  | Does not apply |
| Manufacturer | raseparter |
| Manufacturer  | raseparter |
| Material | Carbide |
| Number Of Pieces | 14 |
| Part number | Does not apply |
| Product Dimensions | 23.5 x 19.5 x 7.5 cm; 2.36 kg |
| Product Dimensions  | 23.5 x 19.5 x 7.5 cm; 2.36 kg |
| Special Features | 150 |
| Style | fashion |
| Voltage | 1 Volts |

## Product Details

- **Brand:** raseparter
- **Cutting diameter:** 50.8 Millimeters
- **Finish type:** Chrome
- **Material:** Carbide
- **Shank type:** R8

## Images

![9-Pack 2In Boring Head R8 Shank 1/2In Carbide Boring Bar Set Milling - Image 1](https://m.media-amazon.com/images/I/618XGzEjtiL.jpg)
![9-Pack 2In Boring Head R8 Shank 1/2In Carbide Boring Bar Set Milling - Image 2](https://m.media-amazon.com/images/I/51ZSHv7ShlL.jpg)
![9-Pack 2In Boring Head R8 Shank 1/2In Carbide Boring Bar Set Milling - Image 3](https://m.media-amazon.com/images/I/51jOMcgKVEL.jpg)
![9-Pack 2In Boring Head R8 Shank 1/2In Carbide Boring Bar Set Milling - Image 4](https://m.media-amazon.com/images/I/51kbiSA+1LL.jpg)
![9-Pack 2In Boring Head R8 Shank 1/2In Carbide Boring Bar Set Milling - Image 5](https://m.media-amazon.com/images/I/61QvlffueTL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***E on 22 December 2023*

The product is exactly what is shown. It came as expected.

### ⭐⭐⭐ Review
*by J***N on 5 February 2024*

I did use the bore head immediately as I had a 15mm bore to cut. First, I put the head in my mill and began adjusting. Why is the head wiggling about???? It's wiggling! Is the R8 collet junk?🤔 Took the tool out and found out the collet and head are two separate pieces and threaded together about as hand tight as a two year old would be able! Threaded together by 30mm thread or so, I did not measure, but that's about what it is. Took that apart, applied RED loctite as I DON'T WANT THIS COMING APART! I could have welded I suppose? Either way I don't want the tool coming apart during a bore process. First task is to secure these two pieces together! The dial works OK but for sure has a good amount of backlash. The description states .0001" increments but on the tool itself it's stamped/laser cut .001" on the diameter. The dial is easy enough to read just make sure of your direction every adjustment. It works if you are careful! I did find the bore bar carbides to be not so sharp. Dull enough to cause a good deal of deflection. A sharp 1/2" HSS ground bar might be better! OK, so I'm expecting $2000 performance from a $70 tool. My bad! It works but sneaking up on your diameter is necessary. Also, a couple spring cuts are a good idea! I would not recommend this for a beginner/ novice. There are just too many factors that will destroy your project unless you can figure how to make stuff work. Can you redneck this tool good enough to work? Maybe!

## Frequently Bought Together

- raseparter 2In Boring Head Set, 9-Pack Carbide Boring Bar Set, R8 Shank 1/2In Milling Milling Machine Accessories
- Accusize Industrial Tools 2'' Carbide Indexable End Mill, R8 Shank, with 3 Pc Tpg 322 Inserts, 0046-0916
- Mitutoyo 050101, Edge Finder, 3/8" Dia. Shank, .200" Dia. Tip

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-18*