The Reaper Super Premium Black & Gold 7 Piece Coarse Drill & Tap Combination Bits (#73990) save time, money, and effort! These high-quality, high-speed steel combo bits drill the hole and tap the threads in a single drill. The self-centering helical split point provides excellent drilling precision and accuracy. The seven most popular screw sizes are included, from 1/8" to to 1/2-13 with 1/4" Quick Connect.
Black oxide treatment adds lubricity and creates small pockets on the surface of the bits that hold coolant near the cutting edge. Gold oxide treatment adds lubricity for ultimate cutting and bit performance. Combo drill and tap bits have round shanks with flats onto three sides to reduce slippage of the bit when used in drill chucks. Heat-treated, split point bits are self-centering for precise drilling applications.
Ideally suited for on-site tapping construction applications, maintenance, repair, assembly, manufacturing, and production environments. A convenient nylon pouch has velcro for easy open and close and a buckle to be easily clipped onto a belt.
- Black and Gold Oxide Finish
- Body and clearance are gold surfaces treated for maximum lubricity
- Drills holes and taps threads in one bit
- Self-centering helical split point provides excellent drilling accuracy and precision.
- Hi-molybdenum tool steel ensures longer life.
- The precision ground point, flutes, body, clearance, and drill diameters for the best accuracy and performance
- Heat treated to 2185°F and then nitro carburized at 950°F to be measurably harder than high-speed steel.
- Sizes Include: 1/8" - 40 , 3/16"-32, 1/4"-20, 5/16"-18, 3/8"-16, 7/16"-14 & 1/2"-13
- Nylon pouch with belt clip is easy and convenient to carry and wear
- Made in the U.S.A.
