Taper tap details
Drillco 11/16-11 Nitro Taper Tap (20N144CT)
Drillco 20N144CT 11/16-11 Nitro Taper Tap is engineered for general-purpose machine and hand tapping applications. This Nitro-treated high-speed steel tap features a taper geometry, making it ideal for starting threads smoothly and accurately. Whether you're working with new material or restoring damaged threads, the precision-ground flutes and bright finish ensure clean cutting action and reduced friction. Built to handle a wide variety of materials, this USA-made tool delivers consistent results and long-lasting durability.
Taper geometry for easy thread starts and smooth cutting performance.
High carbon content HSS enhances strength and cutting edge retention.
Nitro-treated for increased surface hardness and wear resistance.
Bright finish improves chip flow and minimizes heat buildup.
Standard square shank for compatibility with tap wrenches and machines.
Ideal for starting threads accurately in through holes or blind holes.
Performs well across various materials, reducing the need for multiple tools.
Durable construction supports extended use in demanding environments.
Technical Specifications:
Thread Size: 11/16-11
Material: High-Speed Steel (HSS)
Treatment: Nitro Coated
Shank Type: Square
Country of Origin: USA
Product identification
- Brand: Drillco
- Model / MPN: 20N144CT





