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BSF Carbide Burr Blank Return to Burr Menu
Shape SE (Tree, Radius Nose)

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Blank Designation A B R1 R2
Nominal Actual Nominal Actual
BSF-51 1/4 .265±.005 1/2 .500±.010 1.630±.018 .068±.005
BSF-3 3/8 .390±.005 3/4 .750±.010 2.300±.020 .098±.005
BSF-4 7/16 .453±.005 1 1.000±.010 3.255±.020 .098±.005
BSF-13 1/2 .515±.005 3/4 .750±.010 1.760±.020 .130±.005
BSF-5 1/2 .515±.005 1 1.000±.010 3.255±.020 .130±.005
BSF-6 5/8 .640±.005 1 1.000±.010 3.005±.020 .194±.006
BSF-7 3/4 .767±.006 1 1.000±.010 2.130±.020 .194±.006
BSF-14 3/4 .767±.006 1-1/4 1.250±.015 3.319±.020 .194±.006
BSF-15 3/4 .767±.006 1-1/2 1.500±.015 5.069±.020 .194±.006
All dimensions in inches.

Blank Designation TechMet Stock Number by Grade
TMK-15A TMK-15B
BSF-51 23012 21012
BSF-3 23010 21010
BSF-4 23018 21018
BSF-13 23059 21059
BSF-5 23011 21011
BSF-6 23051 21051
BSF-7 23061 21061
BSF-14 23060 21060
BSF-15 23044 21044