Single End Cobalt High Speed Steel
List 520 OSG COBALT HSS SQ
SPEED FEED 1408-1409
PACKED 1 PIECE
HSS-Co
STUB
REG
WELDON FLAT
30˚
BR
TiN
2 FLUTE
Cutting Diameter Tolerance 1/8" ≤ D ≤ 2" +0.003 / -0"
Length of Cut
Overall Length
Shank Dia.
Length of Cut
Overall Length
Shank Dia.
Dia.
Dia.
EDP Number
Surface Treatment
EDP Number
Surface Treatment
D (Fractional Size)
D (Fractional Size)
Lc (Inch)
L (Inch)
d (Inch)
Lc (Inch)
L (Inch)
d (Inch)
5200100 5200105 5209100 5200200 5200205 5209200 5200300 5200305 5209300 5200400 5200405 5209400 5200500 5200505 5209500 5200600 5200605 5209700 5200700 5201105 5201100 5201600 5201200 5201700 5201300 5201305 5202100 5202105 5201800 5201400 5202200 5201900 5201500
1/8 0.375 2.313 0.375 BRIGHT
5201505 5202300 5203100 5203105 5202800 5202400 5202900 5202500 5203200 5204100 5203205 5204105 5203400 5202600 5203500 5202700 5203300 5204200 5203305 5205100 5205105 5204300 5205200 5204400 5205300 5206100 5205400 5205500 5206200 5206300 5206400 5207400
3/4 1.313 3.313 0.500
TiN
1/8 0.375 2.313 0.375
TiN
3/4 1.313 3.438 0.625 BRIGHT 3/4 1.313 3.563 0.750 BRIGHT 25/32 1.500 3.625 0.625 BRIGHT 13/16 1.500 3.625 0.625 BRIGHT 27/32 1.500 3.625 0.625 BRIGHT 7/8 1.500 3.625 0.625 BRIGHT 3/4 1.313 3.563 0.750 TiN 7/8 1.500 3.750 0.750 BRIGHT 7/8 1.500 3.750 0.875 BRIGHT
5/32 0.438 2.313 0.375 BRIGHT 3/16 0.438 2.313 0.375 BRIGHT 7/32 0.500 2.313 0.375 BRIGHT 1/4 0.500 2.313 0.375 BRIGHT 3/16 0.438 2.313 0.375 TiN 9/32 0.563 2.313 0.375 BRIGHT 5/16 0.563 2.313 0.375 BRIGHT 11/32 0.563 2.313 0.375 BRIGHT 3/8 0.563 2.313 0.375 BRIGHT 1/4 0.500 2.313 0.375 TiN 5/16 0.563 2.313 0.375 TiN 13/32 0.813 2.500 0.375 BRIGHT 7/16 0.813 2.500 0.375 BRIGHT 15/32 0.813 2.500 0.375 BRIGHT 1/2 0.813 2.500 0.375 BRIGHT 7/16 0.813 2.500 0.375 TiN 1/2 1.000 3.000 0.500 BRIGHT 17/32 1.125 3.125 0.500 BRIGHT 9/16 1.125 3.125 0.500 BRIGHT 19/32 1.125 3.125 0.500 BRIGHT 5/8 1.125 3.125 0.500 BRIGHT 3/8 0.563 2.313 0.375 TiN 1/2 0.813 2.500 0.375 TiN
7/8 1.500 3.750 0.750 7/8 1.500 3.750 0.875
TiN TiN
29/32 1.500 3.750 0.750 BRIGHT 15/16 1.500 3.625 0.625 BRIGHT 31/32 1.500 3.750 0.750 BRIGHT
1 1 1 1 1 1
1.500 3.625 0.625 BRIGHT 1.500 3.750 0.750 BRIGHT 1.500 3.750 0.875 BRIGHT
1.500 3.750 0.750
TiN
1.625 4.125 1.000 BRIGHT
1.625 4.125 1.000
TiN
1-1/8 1.625 3.875 0.875 BRIGHT 1-1/8 1.625 4.125 1.000 BRIGHT 1-1/4 1.625 3.875 0.875 BRIGHT 1-1/4 1.625 4.125 1.000 BRIGHT 1-1/4 1.625 4.125 1.250 BRIGHT 1-3/8 1.625 4.125 1.000 BRIGHT 1-1/2 1.625 4.125 1.000 BRIGHT 1-1/2 1.625 4.125 1.250 BRIGHT 1-3/4 1.625 4.125 1.250 BRIGHT
5/8 1.125 3.125 0.500
TiN
5/8 1.313 3.438 0.625 BRIGHT
5/8 1.313 3.438 0.625
TiN
21/32 1.313 3.313 0.500 BRIGHT 11/16 1.313 3.313 0.500 BRIGHT 11/16 1.313 3.438 0.625 BRIGHT 23/32 1.313 3.313 0.500 BRIGHT 3/4 1.313 3.313 0.500 BRIGHT
2 2
1.625 4.125 1.250 BRIGHT 2.000 5.750 2.000 BRIGHT
Stocked
Available Upon Request; MOQ May Apply
STE
Globally Stocked Note: Other coatings available upon request. 2" diameter shanks have combination drive.
Stocked
Available Upon Request; MOQ May Apply
STE
Globally Stocked Note: Other coatings available upon request. 2" diameter shanks have combination drive.
P
M
K
N
S
H
Steel
Non-Ferrous
HRSA
Carbon Steel
Stainless Steel
Hardened Steel
Alloy Steel 4140 4340
Cast Iron
Aluminum Nickel Alloy Titanium
Die Steel
Low Medium High 1010 1018 1035 1045 1065
6Al4V (30 HRC)
~35 HRC
35-45 HRC
45-50 HRC
50-70 HRC
6061 7075 Casting Inconel
300
400 17-4 PH
Good
Best
949
Square End
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