Threaded Shank Adapter Drill NAS 965 Type D - Fractional Sizes - Long

#21 Long Cobalt Threaded Shank Drill Bit Decimal Equivalent .1590 Metric Equivalent 4.04mm Overal Length 2-1/8, Premium Grade Steel Overall Length: 2-1/8; Shank Size: 1/4-28; Shank Type: Threaded; Style: Threaded Shank; Cutting Angle: 135; Point Type: Split Point;