GMTOOLS Combination Drill and Tap Bit Set with Quick-Change Adapter of 13Pcs, 6 SAE Sizes & 6 Metric Sizes | High-Speed Steel, Black Oxide Coating

• Multiple Sizes: 6PC SAE: 6-32NC, 8-32NC, 10-24NC, 10-32NC, 12-24NC, ¼-20NC; 6 metric-M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0, M8 x 1.25, M10 x 1.5; 1 piece-quick change adapter.
• Designed for Metal Work: Crafted with high-speed steel and a black oxide coating, these tap bits are ideal for a wide range of materials, including thin plates or sheet-metal up to 1/4 inch, copper, brass, aluminum, plastic, and more.
• High efficiency: These drill tap bits are expertly crafted from high-speed steel, ensuring durability and precision in metalworking applications.It can drill, tap, deburr and countersink copper, brass, aluminum, metal plates and plastics at the same time, so as to complete the work quickly and completely, greatly saving processing steps and time costs, and improving work efficiency.
• Convenient Features: Our drill and tap sets include a 1/4" hex shank quick-change adapter for ease of use and extended reach. Comes neatly packaged in a storage box with clearly marked compartments for easy storage.
• Quality Commitment: If for any reason you are not satisfied with your purchase, please contact us. We offer 30 days money back. 100% satisfaction guaranteed, risk-free shopping!

• Select the Correct Size — Identify the thread size needed, match with the set sizes, and prepare the workpiece with a pilot hole slightly smaller than the tap size.
• Drill and Thread — Use the quick-change adapter to attach the tap bit, drill at low speed with cutting oil, then carefully thread into the hole, reversing periodically.
• Finish and Clean — Deburr the thread, clean the workpiece, and reapply oil if needed. Store the bits in the provided box for longevity.

Typical situations where GMTOOLS Combination Drill and Tap Bit Set with Quick-Change Adapter of 13Pcs helps — illustrative scenarios, not customer reviews.