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BSJ Carbide Burr Blank Return to Burr Menu
Shape SJ (60-Degree Cone)

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Blank Designation A B C
Nominal Actual Nominal Actual
BSJ-3 3/8 .390±.005 7/16 .438±.010 .032±.005
BSJ-5 1/2 .515±.005 35/64 .547±.010 .032±.005
BSJ-6 5/8 .640±.005 11/16 .688±.010 .063±.005
BSJ-7 3/4 .767±.006 51/64 .797±.010 .063±.005
BSJ-9 1 1.019±.007 31/32 .969±.010 .125±.005
All dimensions in inches.

Blank Designation TechMet Stock Number by Grade
TMK-15A TMK-15B
BSJ-3 23073 21073
BSJ-5 23074 21074
BSJ-6 23075 21075
BSJ-7 23087 21087
BSJ-9 23088 21088