Hss bottoming tap details
Drillco 1-1/8-12 HSS Bottoming Tap (20A208FB)
Drillco 20A208FB 1-1/8-12 HSS Bottoming Tap delivers precise, chip-free threading for applications requiring threads close to the bottom of blind holes. Designed with a minimal chamfer (1–2 threads), this bottoming tap is ideal for finishing threads to full depth. Made from general purpose high-speed steel and coated with black oxide for enhanced durability, it provides reliable performance in both production and hand tapping across a variety of materials.
Bottoming chamfer allows full threading near the bottom of blind holes
Straight flute design suitable for general-purpose use
Manufactured from general purpose high-speed steel (HSS) for strength and longevity
Black oxide finish for improved wear resistance and extended tool life
Precision ground for clean, accurate threads
Jobber length fits most standard tapping applications
Made in the USA to ensure quality and reliability
Ideal for applications with limited hole depth
Ensures consistent threading in tight-tolerance environments
Reduces tool wear and improves performance across various materials
Technical Specifications:
Thread Size: 1-1/8-12
Tap Type: HSS Bottoming Tap
Finish: Black Oxide
Point Angle: 118° Conventional Point
Material Compatibility: Aluminum, brass, mild steel, and other common materials
Use Case: Manual or CNC bottom threading in blind holes
Product identification
- Brand: Drillco
- Model / MPN: 20A208FB
