4 Piece 1/4-1/2" Double-End Boring Bar Set ~ Includes the following: one 1/4 X 5" that takes a 5/32" round tool bit, one 5/16 X 5" that takes a 3/16" round tool bit, one 3/8 X 6" that takes a 3/16" round tool bit and one 1/2 X 6" that takes a 3/16" square tool bit. ~ Machined from selected steel for greater strength and rigidity. ~ Broached holes accept high speed steel and carbide tool bits. ~ Black oxide finish. ~ Bars have one 45° end and one 90° end.
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