End Mill Size Standards Chart & Introduction

In this guide,you'll learn：

• What is an End mill? 
• Square End Mill Size Standards
• Ball Nose End Mill Size Standards
• Corner Radius End Mill Size Standards
• Taper End Mill Size Standards
• Long Neck End Mill Size Standards
• Detail of the end mill

 

What is an End mill? 

End Mills are used for making shapes and holes in a workpiece during milling, profiling, contouring, slotting, counterboring, and drilling applications.
They are designed with cutting teeth on the face and edge of the body and can be used to cut in several directions.

According to the five most common end mill types, we will introduce how to read the specification sheet one by one, and the precautions to help you quickly find the size you need!

A. Square End Mill Size Standards:

P-SE

Dimension					Purchase Code									Series	Application
Diameter	Flute Length	Full / Overall Length	Shank Diameter	Flutes	MODE	Coating
( d )	( l )	( L )	( D )	(Z )		N/A	ALTIBN	TiSiN	ZrN-A	ZrN-S	TiSiN+	P-nACo	nACRo
6mm	16mm	50mm	6mm	4	P-SE0604	.00	.01	.02	.03	-	-	-	-	600PLUS	General Steel ≤HRC50
1/8''	3/8''	1-1/2''	1/8''	2	ISE1/8"2T	.00	.01	.02	.03	-	-	-	-	600Nano (Inch)	General Steel ≤HRC50
8mm	21mm	60mm	8mm	4	P-UET0804	.00	.01	-	-	.04	-	-	.08	400PLUS	HRC50-58
10mm	22mm	75mm	10mm	4	P-SFUET1004	.00	-	-	-	-	.06	.07	-	200PLUS	HRC58-67

 Related Product Collection: Square End Mill

 

B. Ball Nose End Mill Size Standards:

P-SB

Dimension

Purchase Code

Series

Application

Diameter

Radius

Flute Length

Full / Overall Length

Shank Diameter

Flutes

MODE

Coating

( d )

(R)

( l )

( L )

( D )

(Z )

N/A

ALTIBN

TiSiN

ZrN-A

ZrN-S

TiSiN+

P-nACo

nACRo

6mm

3R

12mm

50mm

6mm

4

P-SB0604

.00

.01

.02

.03

-

-

-

-

600PLUS

General Steel ≤HRC50

1/8''

1/16''R

3/8''

1-1/2''

1/8''

2

ISB1/8"2T

.00

.01

.02

.03

-

-

-

-

600Nano (Inch)

General Steel ≤HRC50

8mm

4R

16mm

60mm

8mm

4

P-UBT0804

.00

.01

-

-

.04

-

-

.08

400PLUS

HRC50-58

10mm

5R

15mm

75mm

10mm

2

P-SFUBT1002

.00

-

-

-

-

.06

.07

-

200PLUS

HRC58-67

 Related Product Collection: Ball Nose End Mill
 

C. Corner Radius End Mill Size Standards:

P-RTAIPVR1T

Dimension

Purchase Code

Series

Application

Diameter

Radius

Flute Length

Full / Overall Length

Shank Diameter

Flutes

MODE

Coating

( d )

(R)

( l )

( L )

( D )

(Z )

N/A

ALTIBN

TiSiN

ZrN-A

ZrN-S

TiSiN+

P-nACo

nACRo

6mm

1R

15mm

50mm

6mm

4

P-RTA060104

.00

.01

.02

.03

-

-

-

-

600PLUS

General Steel ≤HRC50

1/4''

R.060

9/16''

2-1/2''

1/4''

4

IPVR1T1/4”0.06”4

.00

.01

.02

.03

-

-

-

-

400PLUS (Inch)

HRC50-58

8mm

0.5R

20mm

75mm

8mm

4

P-URTA08054

.00

.01

-

-

.04

-

-

.08

400PLUS

HRC50-58

10mm

2R

22mm

75mm

10mm

4

P-SFURTA10204

.00

-

-

-

-

.06

.07

-

200PLUS

HRC58-67

 Related Product Collection: Corner Radius End Mill
 

D. Taper End Mill Size Standards:

P-TTAITBTA

Dimension										Purchase Code									Series	Application
Diameter	Radius	Flute Length	Efficient Length	Full / Overall Length	Shank Diameter	Bevel	α	Major Diameter	Flutes	MODE	Coating
( d )	(R)	( l )	(L1)	( L )	( D )	θ		d1	(Z )		N/A	ALTIBN	TiSiN	ZrN-A	ZrN-S	TiSiN+	P-nACo	nACRo
6mm	-	20mm	-	75mm	10mm	-	5°	9.5	2	P-TTA060050	.00	.01	.02	.03	-	-	-	-	600PLUS	General Steel ≤HRC50
0.5mm	0.25R	1-1/4''	-	3''	1/4''		5.26	2	2	ITBTA0250526	.00	.01	.02	.03	-	-	-	-	600PLUS (Inch)	General Steel ≤HRC50
6mm	-	35mm	-	100mm	10mm	-	3°	9.67	2	P-LTTA060030	.00	.01	.02	.03	-	-	-	-	600PLUS	General Steel ≤HRC50
3mm	1.5R	20mm	-	50mm	4mm	-	1°	3.6	2	P-TBTA150010	.00	.01	.02	.03	-	-	-	-	600PLUS	General Steel ≤HRC50
8mm	4R	20mm	-	150mm	12mm	3°	-	-	2	P-PBTA0803	.00	.01	.02	.03	-	-	-	-	600PLUS	General Steel ≤HRC50
4mm	2R	5mm	-	100mm	6mm	0.5°	-	-	2	P-ULPBT400560	.00	.01	-	-	.04	-	-	.08	400PLUS	HRC50-58
10mm	3R	10mm	25mm	75mm	10mm	-	-	-	2	P-SFUCRS100302	.00	-	-	-	-	.06	.07	-	200PLUS	HRC58-67

 Related Product Collection: Taper End Mill
 

E. Long Neck End Mill Size Standards:

P-LNT

Dimension							Purchase Code									Series	Application
Diameter (mm)	Radius	Flute Length (mm)	Efficient Length (mm)	Full / Overall Length (mm)	Shank Diameter (mm)	Flutes	MODE	Coating
( d )	(R)	( l )	L1	( L )	( D )	(Z )		N/A	ALTIBN	TiSiN	ZrN-A	ZrN-S	TiSiN+	P-nACo	nACRo
4mm	-	6mm	35mm	75mm	6mm	2	P-LNT40352	.00	.01	.02	.03	-	-	-	-	600PLUS	General Steel ≤HRC50
2mm	1R	3mm	8mm	50mm	4mm	2	P-LNBT20082	.00	.01	.02	.03	-	-	-	-	600PLUS	General Steel ≤HRC50
0.6mm	-	0.9mm	2mm	50mm	4mm	2	P-ULNT06022	.00	.01	-	-	.04	-	-	.08	400PLUS	HRC50-58
4mm	2R	6mm	30mm	75mm	6mm	2	P-ULNBT40302	.00	.01	-	-	.04	-	-	.08	400PLUS	HRC50-58
0.8mm	-	1.2mm	8mm	50mm	4mm	2	P-SFULNT08082	.00	-	-	-	-	.06	.07	-	200PLUS	HRC58-67
4mm	2R	6mm	12mm	50mm	6mm	2	P-SFULNBT40122	.00	-	-	-	-	.06	.07	-	200PLUS	HRC58-67
6mm	1R	6mm	12mm	60mm	6mm	2	P-SFUCR06102(EL12)	.00	-	-	-	-	.06	.07	-	200PLUS	HRC58-67
4mm	-	8mm	20mm	60mm	6mm	2	CEL4025 TB	-	-	-	-	-	-	-	-	Non-Ferrous	Aluminium/Copper
4mm	-	6mm	20mm	75mm	6mm	2	SULNT40202 RS	-	-	-	-	-	-	-	-	Functional	Stainless Steel
4mm	2R	6mm	30mm	75mm	6mm	2	SULNBT40302 RS	-	-	-	-	-	-	-	-	Functional	Stainless Steel

 -
 

Detail of the end mill

 

About Speed Tiger

Speed Tiger is a professional manufacturer of Carbide Cutting Tools and offers OEM Services, having rich experience in producing carbide cutting tools and processing consultants for more than 24 years.


Established in 1998, Speed Tiger specialized in the production of precision carbide end mills, drills, turning tools, thread mills, and other tungsten carbide steel customized cutting tools. Speed Tiger crafts cutting tools at extreme nanometer precision +-2㎛ to the exact, enabling to achieve professional cutting quality.

Visit our shop to find out more, or check out our solution to continue learning.