---
product_id: 238836912
title: "4PCS 2-Flute Tapered Ball Nose End Mills"
brand: "genmitsu"
price: "$77.94"
currency: USD
in_stock: true
reviews_count: 13
category: "Genmitsu"
url: https://www.desertcart.us/products/238836912-4pcs-2-flute-tapered-ball-nose-end-mills
store_origin: US
region: United States of America
---

# 4 radius sizes: 0.25-1.0mm Nano Blue Coating for heat resistance 0.2μm ultra-fine tungsten carbide 4PCS 2-Flute Tapered Ball Nose End Mills

**Brand:** genmitsu
**Price:** $77.94
**Availability:** ✅ In Stock

## Summary

> 🔧 Cut sharper, last longer, and own every detail.

## Quick Answers

- **What is this?** 4PCS 2-Flute Tapered Ball Nose End Mills by genmitsu
- **How much does it cost?** $77.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/238836912-4pcs-2-flute-tapered-ball-nose-end-mills)

## Best For

- genmitsu enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Radius Range:** Includes 4 tapered ball nose end mills (R0.25, 0.5, 0.75, 1.0mm) to master intricate 3D machining and prototyping.
- • **Seamless CNC Integration:** Fits most desktop and industrial CNC machines with a 1/8” (3.175mm) shank, including Genmitsu 3018 series.
- • **Next-Level Heat Resistance:** Nano Blue Coating locks in sharpness and lubricity, delivering superior cutting performance even under intense heat.
- • **Broad Material Compatibility:** Optimized for plastics, aluminum, wood, circuit boards, and more—your all-in-one precision milling solution.
- • **Precision Engineered for Longevity:** Crafted from ultra-fine 0.2μm tungsten carbide alloy, ensuring up to 800 minutes of continuous machining without dulling.

## Overview

The Genmitsu TB04A set features 4 ultra-fine tungsten carbide 2-flute tapered ball nose end mills with a durable Nano Blue Coating, designed for precision 3D machining across diverse materials. With radii from 0.25 to 1.0mm and compatibility with most CNC machines, this cost-effective set delivers extended tool life and exceptional cutting quality for professionals demanding flawless results.

## Description

Product Description Genmitsu TB04A What project are you undertaking? What are you cutting? Is it hard or soft wood? Is it stainless steel, fiberglass, MDF, acrylic, or aluminum? 4pcs 2-Flute Tapered Ball Nose End Mills 1 x Tapered Ball Nose End Mill (Radius: R0.25mm) 1 x Tapered Ball Nose End Mill (Radius: R0.5mm) 1 x Tapered Ball Nose End Mill (Radius: R0.75mm) 1 x Tapered Ball Nose End Mill (Radius: R1.0mm) Material: Tungsten Carbide Steel Alloy Surface : Nano Blue Coating Radius: R0.25, R0.5, R0.75, R1.0mm Shank Diameter: 3.175mm Cutting Length: 15mm Overall Length: 40mm Cost-Effective Set Coming with 4x 2-Flute tapered ball nose end mills, Shank Diameter: 3.175m, Radius: 0.25, 0.5, 0.75, 1.0mm, Cutting Length: 15mm, Overall Length: 40mm. Wide Application High Quality The end mills are made of ultra-fine 0.2μm tungsten carbide steel alloy that can keep continuous machining 800 minutes. Moreover, its Nano Blue Coating with high hardness and heat resistance enables the tool's cutting edge to retain crucial sharpness and lubricity. This provides longevity and produces cutting results of the highest quality.

Review: Tooling - Good all round tooling
Review: Review with Speeds and Feeds - I purchased the bit set for machining small text on hardwood (Mahogany and light Oak) and epoxy. I had tried using 20 degree V-bits but found that due to the small step over there was quite a lot of manual clean up to do and was limited in the depth of cut as cutting any deeper than a 1.5mm lead to the middle of the "e, 4 and o" breaking off. So decided to try tapered Ball Nose bits. I have a Foxalien WM3020 with a 720W spindle and fully expected to snap the two smallest bits, but was pleasantly surprised when the cuts came out perfect and captured the detail I was unable to get with the V-Bits and with virtually no clean up. I did a lot of research on the speeds, feeds and depth of cut for each bit for my spindle which will cut up to 30,000 rpm and set all my speeds, feed and depth of cut to the absolute minimum recommended for materials. Will definitely purchase again. If you cut and paste the following in to ChatGTP it will generate a table with all the speeds and feeds for a 300W spindle with max 10,000 RPM. I must stress that I have NOT done any machining with my 300W spindle. Provide speeds, feeds, and depth of cut table for Genmitsu TB04A tapered Ball Nose Endmill set for cutting Hardwood, softwood, MDF and Aluminium when using a 300W spindle that has a max speed of 10,000 RPM Bit specifications are: Material: Tungsten Carbide Steel Alloy Surface : Nano Blue Coating Radius: R0.25, R0.5, R0.75, R1.0mm Shank Diameter: 3.175mm Cutting Length: 15mm Overall Length: 40mm Good luck

## Features

- High Quality: The Genmitsu end mills are made of ultra-fine 0.2μm tungsten carbide steel alloy that can keep continuous machining 800 minutes. Moreover, its Nano Blue Coating with high hardness and heat resistance enables the tool's cutting edge to retain crucial sharpness and lubricity. This provides longevity and produces cutting results of the highest quality.
- Cost-Effective: Coming with 4x 2-Flute tapered ball nose end mills, Shank Diameter: 3.175mm, Radius: 0.25, 0.5, 0.75, 1.0mm, Cutting Length: 15mm, Overall Length: 40mm.
- Versatile: Perfect for 3D machining jobs like molds, rapid prototyping, models and other other precision parts processing, these Tapered ball nose bits can do the best.
- Applicable Materials: These nano blue coating bits have an HRC rating of 65 and are optimal for milling a wide range of materials, including plastics, aluminum, circuit board, wood, etc. To learn more about how to choose the right bits to meet your needs, please find the Comparison Chart (CNC Bits Buying Guide) at the Product Guides and Documents Section below.
- Wide Compatibility: Genmitsu TB04A tapered ball nose end mills are compatible with most desktop CNC machines, such as the Genmitsu 3018 Series, as well as other industrial CNC machines. Just make sure you select the correct-sized collet for your device.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08CDBHY3P |
| Best Sellers Rank | 38,589 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 3 in Tapered End Mills |
| Brand | Genmitsu |
| Corner Radius | 0.25 Millimetres |
| Country Of Origin | China |
| Customer Reviews | 4.7 out of 5 stars 277 Reviews |
| Cut Type | Non-central |
| Cutting Diameter | 9.25 Millimetres |
| Cutting Length | 15 Millimetres |
| Cutting diameter | 9.25 Millimetres |
| Cutting length | 15 Millimetres |
| End Cut Type | Tapered Ball |
| Finish Types | TiAlN |
| Finish type | TiAlN |
| Helix Angle | 30.5 Degrees |
| Item Dimensions L x W | 38L x 3W millimetres |
| Item Shape | Round |
| Manufacturer | Genmitsu |
| Manufacturer Part Number | MBS-004 |
| Material | Carbide |
| Model Number | MBS-004 |
| Number of Cutting Edges | 4 |
| Number of Flutes | 2 |
| Number of flutes | 2 |
| Size | 1/8'' Shank |
| Size Name | 1/8'' Shank |
| Tolerance Held | Precision |
| Unit Count | 1.0 count |

## Product Details

- **Cutting diameter:** 9.25 Millimetres
- **Cutting length:** 15 Millimetres
- **Finish type:** TiAlN
- **Material:** Carbide
- **Number of flutes:** 2

## Images

![4PCS 2-Flute Tapered Ball Nose End Mills - Image 1](https://m.media-amazon.com/images/I/61Rr7xjMORL.jpg)
![4PCS 2-Flute Tapered Ball Nose End Mills - Image 2](https://m.media-amazon.com/images/I/61EjXsO94DL.jpg)
![4PCS 2-Flute Tapered Ball Nose End Mills - Image 3](https://m.media-amazon.com/images/I/71TS7o8kQfL.jpg)
![4PCS 2-Flute Tapered Ball Nose End Mills - Image 4](https://m.media-amazon.com/images/I/61rrGTls+3L.jpg)
![4PCS 2-Flute Tapered Ball Nose End Mills - Image 5](https://m.media-amazon.com/images/I/61X3TXcH+eL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tooling
*by A***N on 20 March 2026*

Good all round tooling

### ⭐⭐⭐⭐⭐ Review with Speeds and Feeds
*by F***K on 5 January 2025*

I purchased the bit set for machining small text on hardwood (Mahogany and light Oak) and epoxy. I had tried using 20 degree V-bits but found that due to the small step over there was quite a lot of manual clean up to do and was limited in the depth of cut as cutting any deeper than a 1.5mm lead to the middle of the "e, 4 and o" breaking off. So decided to try tapered Ball Nose bits. I have a Foxalien WM3020 with a 720W spindle and fully expected to snap the two smallest bits, but was pleasantly surprised when the cuts came out perfect and captured the detail I was unable to get with the V-Bits and with virtually no clean up. I did a lot of research on the speeds, feeds and depth of cut for each bit for my spindle which will cut up to 30,000 rpm and set all my speeds, feed and depth of cut to the absolute minimum recommended for materials. Will definitely purchase again. If you cut and paste the following in to ChatGTP it will generate a table with all the speeds and feeds for a 300W spindle with max 10,000 RPM. I must stress that I have NOT done any machining with my 300W spindle. Provide speeds, feeds, and depth of cut table for Genmitsu TB04A tapered Ball Nose Endmill set for cutting Hardwood, softwood, MDF and Aluminium when using a 300W spindle that has a max speed of 10,000 RPM Bit specifications are: Material: Tungsten Carbide Steel Alloy Surface : Nano Blue Coating Radius: R0.25, R0.5, R0.75, R1.0mm Shank Diameter: 3.175mm Cutting Length: 15mm Overall Length: 40mm Good luck

### ⭐⭐⭐⭐⭐ Good itrms
*by J***S on 4 September 2025*

I love working with these.

## Frequently Bought Together

- Genmitsu 4pcs 2-Flute Tapered Ball Nose End Mills Tungsten Carbide Cutter with Nano Blue Coat, R0.25-1.0, 1/8” Shank, TB04A
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-10*