Broached holes accept high speed steel and carbide tool bits Machined from selected steel for greater strength and rigidity Black oxide finish Bars have one 45 degree end and one 90 degree end

HHIP 4 Piece 1/4-1/2" double-end boring bar set is machined from selected steel for greater strength and rigidity. 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. Broached holes accept high speed steel and carbide tool bits. Black oxide finish. Bars have one 45 degree end and one 90 degree end.