Single End Cobalt High Speed Steel
List 525 OSG COBALT HSS EDL
SPEED FEED 1408-1409
PACKED 1 PIECE
HSS-Co
STUB
REG
LONG
WELDON FLAT
30˚
BR
2 FLUTE
Cutting Diameter Tolerance 3/8" ≤ D ≤ 2" +0.0011 / -0"
Diameter
Length of Cut
Overall Length
Shank Dia.
EDP Number
Lc (Inch) 1.500 2.000 2.000 2.250 2.500 3.000 3.000 3.000 3.000 3.000 3.000 3.000 3.000
L (Inch) 3.250 4.000 4.125 4.500 4.750 5.500 5.500 5.500 5.500 5.500 5.500 5.500 6.750
d (Inch) 0.375 0.500 0.625 0.750 0.875 1.000 1.000 1.000 1.250 1.250 1.250 1.250 2.000
D (Fractional Size)
5250500 5251100 5252100 5253100 5254100 5255100 5255200 5255300 5256100 5256200 5256300 5256400 5257400
3/8 1/2 5/8 3/4 7/8
1
1-1/8 1-1/4 1-1/4 1-1/2 1-3/4
2 2
Stocked Globally Stocked Note: Other coatings available upon request. 2" diameter shanks have combination drive. Available Upon Request; MOQ May Apply
STE
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
951
Square End
osgtool.com
Powered by FlippingBook