DRILLCO DRL100HX156 - 7/8 Straight Flute Hex Bridge Length Construction ReamerBrand Drillco Product SKU 100HX156 Category Reamers Size Fractional Material High Speed Steel Finish Coating Black Oxide Pack Quantity 1 Size 7 8 Overall Length 9. 3 8 Flute Length 7. 3 8 Description 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.