---
product_id: 135155660
title: "SPEED TIGER Carbide Square End Mill - 3 Flute - IAUE3/8 3 (1 Piece, 3/8\") - High Feed U-Type Design - for Roughing and Finishing - for Milling Aluminum Applications – Professional Mill Bits Sets"
brand: "speed tiger"
price: "327.97 DT"
currency: TND
in_stock: true
reviews_count: 9
category: "Speed Tiger"
url: https://www.desertcart.tn/products/135155660-speed-tiger-carbide-square-end-mill-3-flute-iaue3-8
store_origin: TN
region: Tunisia
---

# ±0.02mm precision tolerance for professional accuracy High Feed U-Type design for faster material removal 3 Flutes for smooth, efficient cutting SPEED TIGER Carbide Square End Mill - 3 Flute - IAUE3/8 3 (1 Piece, 3/8") - High Feed U-Type Design - for Roughing and Finishing - for Milling Aluminum Applications – Professional Mill Bits Sets

**Brand:** speed tiger
**Price:** 327.97 DT
**Availability:** ✅ In Stock

## Summary

> ⚡ Cut Faster, Finish Cleaner — Own the Mill, Own the Moment!

## Quick Answers

- **What is this?** SPEED TIGER Carbide Square End Mill - 3 Flute - IAUE3/8 3 (1 Piece, 3/8") - High Feed U-Type Design - for Roughing and Finishing - for Milling Aluminum Applications – Professional Mill Bits Sets by speed tiger
- **How much does it cost?** 327.97 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/135155660-speed-tiger-carbide-square-end-mill-3-flute-iaue3-8)

## Best For

- speed tiger enthusiasts

## Why This Product

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

## Key Features

- • **Precision Perfected:** Achieve ultra-smooth finishes with ±0.02mm tolerance, ensuring your aluminum projects look flawless every time.
- • **Speed Meets Strength:** High Feed U-Type design maximizes material removal rate, slashing your machining time without sacrificing quality.
- • **Durability That Lasts:** Crafted from premium tungsten carbide, this end mill withstands high RPMs and aggressive feed rates without gumming or dulling.
- • **Data-Driven Performance:** Access detailed cutting condition datasheets to fine-tune your CNC setup and stay ahead of the curve.
- • **Engineered for Aluminum:** Optimized double relief tooth geometry delivers superior chip evacuation and surface finish on aluminum and copper alloys.

## Overview

The SPEED TIGER Carbide Square End Mill IAUE3/8 3-flute is a precision-engineered tungsten carbide tool designed for high-performance milling of aluminum and copper alloys. Featuring a high feed U-type design and double relief tooth geometry, it delivers exceptional material removal rates and surface finishes with ±0.02mm accuracy. Ideal for both roughing and finishing, this durable end mill supports faster, cleaner cuts at high RPMs, backed by detailed cutting data for professional CNC users.

## Description

Product description Tools That Fit Your Job IAUE IAP IAE5 ISEU ISED

Review: perfect for aluminum - this is my second one a backup incase i do something foolish. so far this bit has done great. clean fast cuts on my CNC machine hundreds of pieces cut through slots in quarter inch 6063 bar stock at 15000 rpm and 40 inches per minute and a plunge rate of 5 ipm. I could probably push that up some but itis working to perfection and I don't want to reprogram lol. highly recomended ! regulars end mill only cut about one linear inch before gumming up and failing. his seep tiger is well worth it.
Review: Great Price *and* Quality! - I purchased the IAUE5/16"3, IAUE3/8"3, and IAUE1/2"3 a long time ago, but never got around to using them until recently. For the price, all three of them have been amazing. I mill aluminum dry, so chip welding is an issue with poorly polished endmills as is of course a dull edge. Needless to say, I have had zero issues with finish, chip evacuation, and longevity. These endmills have easily withstood the abuse I've put them through and I will likely be back for more! Added bonus - Many endmills and other CNC bits sold on desertcart have zero information in the way of feedrates, chipload, etc. I was pleasantly surprised to find out that Speed Tiger offers pretty in-depth and accurate (according to automatic calculations in Fusion360 doublechecking the numbers) datasheets for their bits on their website. Thank you for that!

## Features

- ✅ APPLICATION -These cutters are ideal for machining Aluminum and Copper Alloys due to their U-shaped design and high feed rate.
- ✅ HIGH-PERFORMANCE MATERIAL - The exceptional Material Removal Rate (MRR) enables faster cutting, particularly when slotting.
- ✅ DISTINCTIVE TOOTH DESIGN: Double relief angles create excellent productivity, while the design optimized for alloys effectively enhances surface smoothness.
- ✅ FINE WORKMANSHIP - Our products deliver outstanding high accuracy with an error of -0.02mm, empowering users to achieve professional cutting quality effortlessly.
- ✅ DEDICATED SUPPORT - Please don't hesitate to contact us on desertcart if you need the Cutting Condition Data. We want to ensure you receive the best product that meets your requirements.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FSXGPT5 |
| Best Sellers Rank | #68,422 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #39 in Square Nose End Mills |
| Brand Name | SPEED TIGER |
| Customer Reviews | 4.6 out of 5 stars 359 Reviews |
| Cut Type | Finishing, Roughing, Square |
| Cutting Diameter | 9.53 Millimeters |
| Cutting Length | 1-1/4" Inches |
| End Cut Type | Square End |
| Finish Type | Unfinished |
| Finish Types | Unfinished |
| Item Dimensions L x W | 2.5"L x 0.37"W |
| Manufacturer | SPEED TIGER |
| Material | Tungsten Carbide |
| Material Type | Tungsten Carbide |
| Model | IAUE3-8-3 |
| Number of Cutting Edges | 3 |
| Number of Flutes | 3 |
| Part Number | IAUE3-8-3 |
| Shape | Square |
| Size | 3/8 in |
| Size Name | 3/8 in |
| Tolerance Held | Precision |
| Unit Count | 1.0 Count |

## Images

![SPEED TIGER Carbide Square End Mill - 3 Flute - IAUE3/8 3 (1 Piece, 3/8") - High Feed U-Type Design - for Roughing and Finishing - for Milling Aluminum Applications – Professional Mill Bits Sets - Image 1](https://m.media-amazon.com/images/I/61rvdVJCdDL.jpg)
![SPEED TIGER Carbide Square End Mill - 3 Flute - IAUE3/8 3 (1 Piece, 3/8") - High Feed U-Type Design - for Roughing and Finishing - for Milling Aluminum Applications – Professional Mill Bits Sets - Image 2](https://m.media-amazon.com/images/I/81ixT1UDMoS.jpg)
![SPEED TIGER Carbide Square End Mill - 3 Flute - IAUE3/8 3 (1 Piece, 3/8") - High Feed U-Type Design - for Roughing and Finishing - for Milling Aluminum Applications – Professional Mill Bits Sets - Image 3](https://m.media-amazon.com/images/I/91F53IvFdUL.jpg)
![SPEED TIGER Carbide Square End Mill - 3 Flute - IAUE3/8 3 (1 Piece, 3/8") - High Feed U-Type Design - for Roughing and Finishing - for Milling Aluminum Applications – Professional Mill Bits Sets - Image 4](https://m.media-amazon.com/images/I/81ckg2QNakL.jpg)
![SPEED TIGER Carbide Square End Mill - 3 Flute - IAUE3/8 3 (1 Piece, 3/8") - High Feed U-Type Design - for Roughing and Finishing - for Milling Aluminum Applications – Professional Mill Bits Sets - Image 5](https://m.media-amazon.com/images/I/816ZNT-uURL.jpg)

## Available Options

This product comes in different **Size, Item Package Quantity** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ perfect for aluminum
*by H***R on December 18, 2025*

this is my second one a backup incase i do something foolish. so far this bit has done great. clean fast cuts on my CNC machine hundreds of pieces cut through slots in quarter inch 6063 bar stock at 15000 rpm and 40 inches per minute and a plunge rate of 5 ipm. I could probably push that up some but itis working to perfection and I don't want to reprogram lol. highly recomended ! regulars end mill only cut about one linear inch before gumming up and failing. his seep tiger is well worth it.

### ⭐⭐⭐⭐⭐ Great Price *and* Quality!
*by T***E on August 7, 2025*

I purchased the IAUE5/16"3, IAUE3/8"3, and IAUE1/2"3 a long time ago, but never got around to using them until recently. For the price, all three of them have been amazing. I mill aluminum dry, so chip welding is an issue with poorly polished endmills as is of course a dull edge. Needless to say, I have had zero issues with finish, chip evacuation, and longevity. These endmills have easily withstood the abuse I've put them through and I will likely be back for more! Added bonus - Many endmills and other CNC bits sold on Amazon have zero information in the way of feedrates, chipload, etc. I was pleasantly surprised to find out that Speed Tiger offers pretty in-depth and accurate (according to automatic calculations in Fusion360 doublechecking the numbers) datasheets for their bits on their website. Thank you for that!

### ⭐⭐⭐⭐⭐ Wow! These worked great for my aluminum BattleBot parts.
*by C***R on September 6, 2021*

I needed to make some parts for a Hub-Motor being used in a BattleBot (see picture). The parts are for a small motor with small details, hence I needed a small 1/8" end mill for my 1/4" CNC (MillRight CarveKing) router. I bought these (SPEED TIGER IAUE 1/8" 3-flute Carbide Square End Mill for Aluminum Applications) (Amazon/Speed Tiger: please re-list these, they are awesome). The picture shows the two parts I made (five of each), total machining time was ~16 hours, all using the same end mill. The last part came out as well as the first part. I pushed the limit, with 20mm of the tool protruding from the collet. I did take it slow since it was my first time machining two-sided aluminum parts this complicated. My speeds and feeds were: 800mm/min (feedrate), 400mm/min (2 degree ramp), 20mm/min (plunge), all using a 0.5mm layer depth (it's a hobbyist CNC machine). As the Speed Tiger website shows, these 1/8" bits want a high speed (~29,000rpm), which is great for router CNC'ers... I dialed my router up to its max speed of 27,000 RPM. To make the 1/8" end mill work in my router's 1/4" chuck, I bought the "Amana Tool - RB-102 High Precision Steel Router Collet Reducer 1/4 Overall Dia x 1/8 Inner". Also, to make this project a success, I bought a compressor (Quipall 2-1-SIL-AL 1 HP 2 Gallon Oil-Free Hotdog Air Compressor), and a mister nozzle (Mist Coolant Lubrication Spray System for Metal Cutting Engraving Cooling Sprayer Machine for Air Pipe CNC Lathe Milling Drill - the picture indicates: Succkey “Full Sealed Mist Sprayer” S/N: AE 2150343). This enabled me to apply a high stream of compressed air (no lubricant or fluid was used) to keep the chips away and the aluminum cool. Both of which worked great. I am very happy with these 1/8" Speed Tiger IAUE 3-flute end mills. For another (larger aluminum) project, I bought the "SPEED TIGER IAE5 Carbide Square Nose End Mill with ZrN Coating for Aluminum Applications - 2 Flute - IAE5-1/4"2T-ZrN" -- I'll let you know how those work.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-09*