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BSC Carbide Burr Blank Return to Burr Menu
Shape SC (Cylindrical Ball Nose)

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Blank Designation A B R
Nominal Actual Nominal Actual
BSC-51 1/4 .265±.005 1/2 .500±.010 .133
BSC-2 5/16 .327±.005 3/4 .750±.010 .164
BSC-3 3/8 .390±.005 3/4 .750±.010 .195
BSC-4 7/16 .453±.005 1 1.000±.010 .227
BSC-5 1/2 .515±.005 1 1.000±.010 .258
BSC-6 5/8 .640±.005 1 1.000±.010 .320
BSC-15 3/4 .767±.005 1/2 .500±.010 .384
BSC-16 3/4 .767±.005 3/4 .750±.010 .384
BSC-7 3/4 .767±.005 1 1.000±.010 .384
BSC-9 1 1.019±.007 1 1.000±.010 .510
All dimensions in inches.

Blank Designation TechMet Stock Number by Grade
TMK-15A TMK-15B
BSC-51 23046 21046
BSC-2 23003 21003
BSC-3 23004 21004
BSC-4 23070 21070
BSC-5 23005 21005
BSC-6 23032 21032
BSC-15 23102 21102
BSC-16   21101
BSC-7 23058 21058
BSC-9 23066 21066