Viking Drill and Tool 58520 Type 914 Fractional Drill Gauge Bit, 1/16" Drill Gauge 1/16 to 1/2-inch by 64ths Prime Steel Finish Fractional Drill Gauge 1/16 - 1/2 by 64ths Fractional Drill Gauge 1/16 - 1/2 by 64ths 1/16 to 1/2-inch by 64ths Prime Steel Finish Drill Gauge 1/16 to 1/2-inch by 64ths Prime Steel Finish