Brand: Ozar Product Code: Ozar-ABH-0731 Product Name: Ozar Double Ended Boring Bar Holder - ABH-0731 Made from tool steel. Double ended boring bars and holder comes complete with screws and allen keys. Black shining finish. Supplied with or without tool bits. Boring bars have one end 45 Degree and other 90 Degree . Holder Size: 2-1/4 Inch Square Size: 1/2 Inch Dia Size: Dia: 3/8 x L: 4-1/2 Inch