Dormer 5978395 E653 Spiral Flute Through/Blind Hole Combination Drill and Tap, 1/4-18 NPT Thread

Dormer Combination Drill and Tap, Spiral Flute Through/Blind Hole, Series: E653, Measurement System: Imperial, 0.4331 in Drill, 1/4-18 NPT Thread, 3-5/16 in Overall Length, 2 Flutes, Right Hand Cutting Direction, Square Shank, 0.562 in Shank Diameter, 0.421 in Square, HSS, Bright