High Speed Steel Taper Shank Bridge Reamers are designed for use in structural steel fabrication bridge work, and ship construction to line up bolt and rivet holes. Can be used in portable electric or pneumatic equipment. These tools are also referred to as Boilermaker's Reamers, Rivet Hole Reamers, Aligning Reamers, or Construction Taper Reamers.DescriptionSizeFlute LengthOverall LengthApproximate Point Diam.Shank3/8" HS Bridge Reamer3/8"3 1/4"7 3/4"1/4"1 MT13/32" HS Bridge Reamer13/32"4 3/8"8 1/4"17/64"2 MT7/16" HS Bridge Reamer7/16"4 3/8"8 1/4"17/64"2 MT9/16" HS Bridge Reamer9/16"5 1/8"9"3/8"2 MT5/8" HS Bridge Reamer5/8"6 1/8"10"25/64"2 MT21/32" HS Bridge Reamer21/32"*7 1/8"11 3/4"13/32"3 MT11/16" HS Bridge Reamer11/16"7 1/8"11 3/4"13/32"3 MT3/4" HS Bridge Reamer3/4"7 3/8"12"15/32"3 MT13/16" HS Bridge Reamer13/16"7 3/8"12"35/64"3 MT7/8" HS Bridge Reamer7/8"7 3/8"12"39/64"3 MT15/16" HS Bridge Reamer15/16"7 3/8"12"43/64"3 MT1" HS Bridge Reamer1"7 3/8"12"47/64"3 MT1 1/16" HS Bridge Reamer1 1/16"7 3/8"12"13/16"3 MT1 1/8" HS Bridge Reamer1 1/8"7 3/8"12"55/64"3 MT1 3/16" HS Bridge Reamer1 3/16"7 3/8"12"59/64"3 MT1 5/16" HS Bridge Reamer1 5/16"7 3/8"13"1 1/16"4 MT1 3/8" HS Bridge Reamer1 3/8"7 3/8"13"1 1/8"4 MT1 7/16" HS Bridge Reamer1 7/16"7 3/8"13"1 3/16"4 MT