Drillco bottoming tap details
Drillco 3/4-16 Nitro Bottoming Tap (20N148FB)
Drillco 20N148FB 3/4-16 Nitro Bottoming Tap – 2000N Series is engineered for precision threading near the bottom of blind holes. With its minimal chamfer length, this bottoming tap provides full-threaded holes where maximum thread engagement is essential. Made from high-speed steel with high carbon content and Nitro-treated for added hardness, it delivers reliable performance and extended tool life. The bright finish enhances lubricity, reduces friction, and helps prevent chip buildup. Proudly made in the USA, this tool is ideal for repair work, production tapping, or fine-thread applications.
Bottoming geometry allows threading close to the bottom of blind holes
High carbon content High-Speed Steel (HSS) for durability and strength
Nitride coating enhances surface hardness and wear resistance
Bright finish improves chip evacuation and reduces friction
Standard square shank compatible with manual and machine tapping tools
Ideal for precision tapping in blind holes with limited clearance
Reduces wear and breakage with optimized chip flow and material strength
Reliable threading for a wide variety of materials and applications
Technical Specifications:
Thread Size: 3/4-16
Tap Type: Bottoming Tap
Material: High-Speed Steel (HSS)
Treatment: Nitro Coated
Flute Type: Straight
Shank Type: Square
Application: Hand and machine tapping
Country of Origin: USA
Product identification
- Brand: Drillco
- Model / MPN: 20N148FB





