---
product_id: 238836912
title: "Genmitsu 4pcs 2-Flute Tapered Ball Nose End Mills Tungsten Carbide Cutter with Nano Blue Coat, R0.25-1.0, 1/8” Shank, TB04A"
brand: "genmitsu"
price: "€ 76.28"
currency: EUR
in_stock: true
reviews_count: 13
category: "Genmitsu"
url: https://www.desertcart.hr/products/238836912-genmitsu-4pcs-2-flute-tapered-ball-nose-end-mills-tungsten
store_origin: HR
region: Croatia
---

# 4 sizes: R0.25-1.0mm radius Nano Blue Coating for heat resistance 0.2μm ultra-fine tungsten carbide Genmitsu 4pcs 2-Flute Tapered Ball Nose End Mills Tungsten Carbide Cutter with Nano Blue Coat, R0.25-1.0, 1/8” Shank, TB04A

**Brand:** genmitsu
**Price:** € 76.28
**Availability:** ✅ In Stock

## Summary

> ⚡ Sharpen Your Edge, Own Every Cut!

## Quick Answers

- **What is this?** Genmitsu 4pcs 2-Flute Tapered Ball Nose End Mills Tungsten Carbide Cutter with Nano Blue Coat, R0.25-1.0, 1/8” Shank, TB04A by genmitsu
- **How much does it cost?** € 76.28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/238836912-genmitsu-4pcs-2-flute-tapered-ball-nose-end-mills-tungsten)

## 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 Size Range:** Includes four tapered ball nose end mills with radii from 0.25mm to 1.0mm, perfect for detailed 3D machining and precision prototyping.
- • **Seamless CNC Integration:** Designed to fit most desktop and industrial CNC machines, including Genmitsu 3018 series, ensuring hassle-free upgrades to your toolkit.
- • **Next-Level Heat Resistance:** Nano Blue Coating ensures superior hardness and lubricity, keeping your cutting edges sharper, longer—even under intense heat.
- • **Broad Material Compatibility:** Optimized for plastics, aluminum, wood, circuit boards, and more—engineered to handle diverse project demands with ease.
- • **Precision Engineered for Longevity:** Crafted from ultra-fine 0.2μm tungsten carbide alloy, these end mills deliver up to 800 minutes of continuous machining without dulling.

## Overview

The Genmitsu 4-piece 2-Flute Tapered Ball Nose End Mill set features ultra-fine 0.2μm tungsten carbide construction with a durable Nano Blue Coating for enhanced heat resistance and sharpness retention. With four precision radii (0.25 to 1.0mm) and a 1/8” shank, these versatile cutters excel in 3D machining across plastics, aluminum, wood, and circuit boards. Compatible with most CNC machines, they offer professional-grade performance and longevity for demanding prototyping and mold-making projects.

## 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 | 44,530 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 2 in Tapered End Mills |
| Brand | Genmitsu |
| Corner Radius | 0.25 Millimetres |
| Country Of Origin | China |
| Customer Reviews | 4.7 out of 5 stars 274 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

![Genmitsu 4pcs 2-Flute Tapered Ball Nose End Mills Tungsten Carbide Cutter with Nano Blue Coat, R0.25-1.0, 1/8” Shank, TB04A - Image 1](https://m.media-amazon.com/images/I/61Rr7xjMORL.jpg)
![Genmitsu 4pcs 2-Flute Tapered Ball Nose End Mills Tungsten Carbide Cutter with Nano Blue Coat, R0.25-1.0, 1/8” Shank, TB04A - Image 2](https://m.media-amazon.com/images/I/61EjXsO94DL.jpg)
![Genmitsu 4pcs 2-Flute Tapered Ball Nose End Mills Tungsten Carbide Cutter with Nano Blue Coat, R0.25-1.0, 1/8” Shank, TB04A - Image 3](https://m.media-amazon.com/images/I/71TS7o8kQfL.jpg)
![Genmitsu 4pcs 2-Flute Tapered Ball Nose End Mills Tungsten Carbide Cutter with Nano Blue Coat, R0.25-1.0, 1/8” Shank, TB04A - Image 4](https://m.media-amazon.com/images/I/61rrGTls+3L.jpg)
![Genmitsu 4pcs 2-Flute Tapered Ball Nose End Mills Tungsten Carbide Cutter with Nano Blue Coat, R0.25-1.0, 1/8” Shank, TB04A - 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.

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-06-23*