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BSM Carbide Burr Blank Return to Burr Menu
Shape SM (Cone)

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Blank Designation A B C D deg. E ref.
Nominal Actual Nominal Actual
BSM-51 1/4 .265±.005 5/8 .635±.010 .065±.005 22 .514
BSM-4 3/8 .390±.005 3/4 .760±.010 .073±.005 28 .636
BSM-5 1/2 .515±.005 1 1.010±.010 .073±.005 28 .886
BSM-6 5/8 .640±.005 1-1/8 1.141±.015 .080±.005 31 1.010
All dimensions in inches.

Blank Designation TechMet Stock Number by Grade
TMK-15A TMK-15B
BSM-51    
BSM-4 23067 21067
BSM-5 23045 21045
BSM-6 23069 21069