What do all the numbers mean on the bits? On the 5mm, the numbers are 5x5x13x57. I figured the first number is the bit diameter? Others???rs

First number is the diameter (in mm) of the flute end. Second number is the diameter of the shaft. Third number is the length of the flutes. Fourth number is the overall length.

Where do I find information on the feed rate and speeds for these end mills?

To be honest I'm not sure. Chinese bits made of who knows what steel. You'd have to get a hardness test and have extensive knowledge of cutting angle vs cutting material to have an accurate guess.

How do these work or Stainless...anyone?

stainless- speed and feed is critical. You must use a low rpm and apply significant feed pressure otherwise it work hardens and you won't be able to cut it. \

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Description

⚡️ Master your craft with AFUNTA’s precision power pack!

COMPACT LIGHTWEIGHT - Easy to handle and store, perfect for on-the-go professionals.
COMPLETE 10 PIECE SET - Everything you need for diverse milling tasks, right at your fingertips.
UNIVERSAL COMPATIBILITY - Fits most standard drill and router setups, ensuring seamless integration.
DURABLE HIGH SPEED STEEL - Built to withstand intense workloads without losing sharpness or integrity.
PRECISION 4 FLUTE DESIGN - Engineered for smooth, accurate cuts that elevate your craftsmanship.

The AFUNTA 4-Flute End Mill Straight Shank Drill Bits set includes 10 high-speed steel bits designed for precision milling and durability. Lightweight and compact, this versatile set fits most standard tools, making it an essential upgrade for professionals seeking reliable, smooth cutting performance.

Specifications

ASIN	B07DQL66VF
ASIN	B07DQL66VF
Best Sellers Rank	#50,606 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #218 in Power Drill Bit Sets
Brand Name	AFUNTA
Customer Reviews	4.4 4.4 out of 5 stars (2,405)
Customer reviews	4.4 4.4 out of 5 stars (2,405)
Cutting Angle String	120 Degrees
Cutting Diameter	12 Millimeters
Date First Available	4 July 2018
Finish Types	High-speed Steel,Hss
Is Discontinued By Manufacturer	No
Item Weight	20 Grams
Item model number	AF-4-flute_end_mill_10
Manufacturer	AFUNTA
Manufacturer	AFUNTA
Material Type	High Speed Steel (HSS)
Minimum Bore Diameter	12 Millimeters
Model	AF-4-flute_end_mill_10
Number of Flutes	4
Package Dimensions	13.4 x 12 x 5.1 cm; 20 g
Point Style	Center Point
Shank Type	Straight
Surface Recommendation	Steel, Titanium
Tool Flute Type	Straight
UPC	783710282415
Unit Count	280 Grams

Reviews

S**D

good quality

all good

28.09.2022

A**E

Artikel erfüllt die Anforderungen (Bohren in PE-Material). Problemloses Absenken in einer Standbohrmaschine auch mit niedrigen Umdrehungszahlen. Loch wird rund und präzise, keine Ausreisser, Blockaden. Was will man mehr? Bewertung beruht auf circa 100 durchgeführten Bohrungen mit einem Bohrer. Kaufgrund war der relativ niedrige Preis im Set, würde es heute wieder so machen.

12.01.2023

妙**高

きれいな穴を開けるために木工用として購入。エンドミルはドリル中心部に歯がないので、いったん3mmくらいの下穴をあける必要があるが、きれいな穴を開けたいときはこの手間を惜しまない。軸径の表示が小さいのでテプラを張った。木工用としては十分な切れ味かなと思う。

13.10.2024

R**N

Solide et endurance fais la job

23.09.2025

A**H

ممتاز

21.10.2024

A**3

Really good quality and strong endmills, they came in perfect condition and are really strong

8.03.2020

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TrustScore 4.5 | 7,300+ reviews

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AFUNTA 4-Flute End Mill Straight Shank Drill Bits - 10 Pieces

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Description

Specifications

Reviews

Common Questions