Single End Cobalt High Speed Steel
List 521 OSG COBALT HSS EBD
SPEED FEED 1504
PACKED 1 PIECE
HSS-Co
STUB
REG
LONG
WELDON FLAT
BR
30˚
2 FLUTE
Cutting Diameter Tolerance
1/8" ≤ D ≤ 1-1/2"
+0.0011 / -0"
Length of Cut
Overall Length
Shank Diameter
Diameter
EDP Number
Lc (Inch) 0.375 0.500 0.625 0.750 0.750 1.500 1.000 1.000 2.000 1.125 1.125 1.375 1.313 1.625 3.000 1.875 2.000 2.250 2.250 2.250 2.500 2.500
L (Inch) 2.313 2.375 2.438 2.500 2.500 3.250 3.000 3.000 4.000 3.125 3.125 3.500 3.313 3.875 5.250 4.125 4.250 4.500 4.750 4.750 5.000 5.000
d (Inch) 0.375 0.375 0.375 0.375 0.375 0.375 0.500 0.500 0.500 0.500 0.500 0.625 0.500 0.750 0.750 0.750 0.875 0.750 1.000 1.000 1.250 1.250
D (Fractional Size)
5210100 5210200 5210300 5210400 5210500 5210600 5219600 5211100 5217100 5211200 5211300 5212100 5211500 5213100 5214300 5213200 5214100 5213300 5215100 5215200 5216100 5216200
1/8
3/16
1/4
5/16 3/8 3/8 1/2 1/2 7/16 9/16
5/8 5/8 3/4 3/4 3/4 7/8 7/8
1 1
1-1/8 1-1/4 1-1/2
Globally Stocked
Stocked
Available Upon Request; MOQ May Apply
STE
Note: Other coatings available upon request.
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
osgtool.com
1116
Ball End
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