Single End Cobalt High Speed Steel
List 540 OSG COBALT HSS SQ
SPEED FEED 1410-1411
PACKED 1 PIECE
HSS-Co
STUB
REG
WELDON FLAT
30˚
BR
TiN
Cutting Diameter Tolerance 1/8" ≤ D ≤ 2" +0.003 / -0"
Diameter
Length of Cut
Overall Length Shank Diameter
EDP Number
Number of Flutes
Surface Treatment
Lc (Inch) 0.375 0.375 0.438 0.500 0.500 0.563 0.625 0.625 0.688 0.750 0.750 0.750 0.750 0.750 1.000 1.000 1.000 1.250 1.000 1.250 1.250 1.375 1.375 1.375 1.375 1.375 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.875 1.875 1.875 1.875 1.875 1.875 1.875
L (Inch) 2.313 2.313 2.375 2.375 2.375 2.438 2.438 2.438 2.500 2.500 2.500 2.500 2.500 2.500 2.688 2.688 2.688 3.250 2.688 3.250 3.250 3.375 3.375 3.375 3.375 3.375 3.750 3.625 3.625 3.750 3.625 3.625 3.625 3.750 3.875 3.875 4.000 4.000 4.000 4.000 4.125 4.125 4.125
d (Inch) 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.500 0.375 0.500 0.500 0.500 0.500 0.500 0.500 0.500 0.625 0.500 0.500 0.625 0.500 0.500 0.500 0.625 0.750 0.750 0.625 0.625 0.625 0.625 0.750 0.875 0.750
D (Fractional Size)
5400100 5400105 5409100 5400200 5400205 5409200 5400300 5400305 5409300 5400400 5400405 5409400 5400500 5400505 5409500 5400600 5400605 5409700 5400700 5401100 5401105 5401600 5401200 5401700 5401300 5401305 5402100 5401800 5401400 5402200 5401900 5401500 5401505 5402300 5403100 5403105 5402800 5402400 5402900 5402500 5403200 5404100 5403205
1/8 1/8
4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 6 6 6 4 4 4
BRIGHT
TiN
5/32 3/16 3/16 7/32
BRIGHT BRIGHT BRIGHT BRIGHT TiN BRIGHT BRIGHT BRIGHT BRIGHT TiN TiN BRIGHT BRIGHT BRIGHT BRIGHT BRIGHT TiN BRIGHT BRIGHT BRIGHT BRIGHT BRIGHT BRIGHT BRIGHT BRIGHT TiN TiN TiN BRIGHT BRIGHT BRIGHT BRIGHT TiN BRIGHT BRIGHT BRIGHT BRIGHT BRIGHT BRIGHT TiN
1/4 1/4
9/32 5/16 5/16
11/32
3/8 3/8
13/32
7/16 7/16
15/32
1/2 1/2 1/2
17/32
9/16
19/32
5/8 5/8 5/8
21/32 11/16 11/16 23/32
3/4 3/4 3/4 3/4 3/4
25/32 13/16 27/32
7/8 7/8 7/8 7/8
TiN
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
963
Square End
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