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End Mill Training - Melin Tool Part Name Descriptions
     
  The basic sizes of the tools are generally reflected in the tool name:  
     
 
  • Shank: The first two (or one for smaller sizes) number digits represent the shank in 32nds. For example, A-1618 has a 1/2" shank (16/32) and A-604 has a 3/16" shank (6/32).
 
     
 
  • Cutting Edge Size: The second two digits represent the cutting edge size also in 32nds. For example, A-1618 has a 9/16 size (18/32) and A-604 has a 1/8 size (4/32).
 

ALL END MILLS
Suffix Special Description
- B  BALL END
- M  MEDIUM LENGTH
- L  LONG LENGTH
- E  EXTRA LONG LENGTH
- EE  EXTRA, EXTRA LONG LENGTH
- R###  CORNER RADIUS (### IS SIZE OF RADIUS)  
- DIA  DIAMOND COATED
- DP  DRILL POINT.  MAY INCLUDE ANGLE LIKE "-DP60" FOR 60 DEG
- TiN  TITANIUM NITRIDE COATED 
- TiAlN  TITANIUM ALUMINUM NITRIDE COATED
- TiCN  TITANIUM CARBONITRIDE COATED 
- AlTiN  ALUMINUM TITANIUM NITRIDE COATED
- ZrN  ZIRCONIUM NITRIDE COATED


COBALT HSS & HSS TOOLS
Prefix Flutes Ends Length Center
Cutting
Special Description
A 2 SE STD YES  
AA 2 SE STD YES FOR ALUMINUM
AK 2 SE STD YES KEYWAY TOLERANCES
AN 2 SE STD YES LONG REACH
AP 2 SE STD YES "P" INDICATES COBALT MATERIAL
AS 2 SE STUB YES  
B 2 DE STD YES  
BS 2 DE STUB YES  
C MULT SE STD NO  
CC MULT SE STD YES  
CCFP MULT SE STD YES FINE-PITCH ROUGHER
CCFPS MULT SE STUB YES FINE-PITCH ROUGHER
CCP MULT SE STD YES "P" INDICATES COBALT MATERIAL
CCRP MULT SE STD YES ROUGHER
CCS MULT SE STUB YES  
CFP MULT SE STD NO FINE-PITCH ROUGHER
CFPS MULT SE STUB NO FINE-PITCH ROUGHER
CR
or CRP
MULT SE STD NO ROUGHER
CRFP MULT SE STD NO ROUGHER/FINISHER
CRFPS MULT SE STUB NO ROUGHER/FINISHER
CRS MULT SE STUB NO ROUGHER
CS MULT SE STUB NO  
D 4 DE STD NO  
DD 4 DE STD YES  
DS 4 DE STUB NO  
E 3 SE STD YES  
E60 3 SE STD YES 60 DEGREE HELIX ANGLE
ERP 3 SE STD YES ROUGHER FOR ALUMINUM
EFP 3 SE STD YES FINE-PITCH ROUGH FOR ALUM
EFPS 3 SE STUB YES FINE-PITCH ROUGH FOR ALUM
EN 3 SE STD YES LONG REACH
ERP 3 SE STD YES ROUGHER FOR ALUMINUM
ERPS 3 SE STUB YES ROUGHER FOR ALUMINUM
F 3 DE STD YES  
R 3 SE STD NO CORNER ROUNDER
RC 4 SE STD NO CORNER ROUNDER
XB 2 DE STD YES LEFT HAND SPIRAL, LH CUT
XD 4 DE STD YES LEFT HAND SPIRAL, LH CUT
 
CARBIDE END MILLS
Prefix Flutes Ends Length Center
Cutting
Special Description
AMG 2 SE * YES  
AMGS 2 SE STUB YES  
AAMG 2 SE * YES HIGH HELIX
AMG55 2 SE * YES  55 DEGREE HELIX ANGLE
AMGS 2 SE STUB YES  
BMG 2 DE * YES  
BRMG 2 DE * NO CORNER ROUNDER 
BSMG 2 DE STUB YES  
BSMG 2 DE STUB YES  
CCMG MULT SE * YES  
CCMGS MULT SE STUB YES  
CMG2 2 SE * NO CHAMFER MILL
CMG4 4 SE * NO CHAMFER MILL
CRMG MULT SE * YES ROUGHER
DDMG 4 DE * YES  
DDSMG 4 DE STUB YES  
EMG 3 SE * YES  60 DEGREE HELIX ANGLE
EMG35 3 SE * YES  35 DEGREE HELIX ANGLE
EMGS35 3 SE STUB YES  35 DEGREE HELIX ANGLE
EMG60 3 SE * YES  60 DEGREE HELIX ANGLE
GMG 5 SE * YES  45 DEGREE HELIX ANGLE
RCMG 4 SE * NO CORNER ROUNDER
RMG 3 SE * NO CORNER ROUNDER
VHMG 4 SE * YES VARIABLE HELIX
VBMG2 2 SE * YES VARIABLE BALL END
VBMG4 4 SE * YES VARIABLE BALL END

      * Refer to the tool suffix information above. 
If there is no suffix, tool is standard length. 

 
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