1/4-18 Npt Tap 7/16 Drill Bit, M2(6542) High Speed Steel Tap And Drill Bit Sets Product Features and Dimensions: Our package includes one 1/4-18 inch NPT tap and one 7/16 inch drill bit. The tap measures 1/8-27 inch with a total length of 2.4 inches/6.1 cm, while the drill bit measures 21/64 inch with a total length of 5.6 inches/14.2 cm Material: Our kit features a heat treated, tempered tap and a hardened and polished drill bit blade, both made from M2(6542) high speed steel. With their long time use, wear resistant construction Precision: The taps come with precision ground threads, right cutting type, round shanks, square heads, and four straight slots, all designed for accurate and efficient thread processing. The drill bit features a spiral chip removal design, clutter chip removal Usage for Taps: Our NPT thread design taps create strong, leak between pipes or fittings, ensuring reliable performance in plumbing, automotive, and construction. For ideal results, use with threading oil and tap holders with overload protection Usage Recommendations: Employing a suitable lubricant can make the cutting process smoother and more accurate. Our drill bit cuts through stainless steel, cast iron, copper, aluminum, and soft metals easily and can also be used on plastic and wood