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End Mill Size Standards Chart & Introduction

End Mill Size Standards Chart & Introduction


In this guide,you'll learn：  

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-SEP-SEP-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-SBP-SBP-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-RTAP-RTAP-RTAIPVR1T 2.0IPVR1T
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-TTAP-TTAP-TTAITBTAITBTA
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-LNTP-LNTP-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

SIDE VIEW of the end mill*SIDE VIEW of the end mill.
TOP VIEW*TOP VIEW of the end mill & EDGE of the end mill.

Speed Tiger is the leading Carbide End mills manufacturer in Taiwan, we provide a large range of CNC End mills, see more end mills products here.
 
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.
Speed Tiger Products Range

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.

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