Drillco Construction Reamer, Series: 125HX, Imperial, 15/16 in Diameter, 9-3/8 in Overall Length, Hex Nut Shank, 1-7/16 in Shank Diameter, Spiral Flute, 7-3/8 in Flute Length, HSS, Black Oxide.Construction or car reamers are especially adapted for heavy duty reaming as encountered in the fabrication of structural steel assemblies. They are tapered at the point to facilitate entering of holes which are out of alignment. Drillco 125HX160 Construction Reamer, Imperial, 15/16 in dia x 9-3/8 in L, 1-7/16 in dia Hex Nut Shank, Spiral Flute