Drillco bottoming tap details
Drillco 1-1/2-12 Nitro Bottoming Tap (20N232FB)
Drillco 20N232FB 1-1/2"-12 Nitro Bottoming Tap is a precision-engineered threading tool designed for creating or restoring threads at the bottom of blind holes. Ideal for applications requiring threads close to the hole bottom, this bottoming tap features minimal tapering, enabling clean, full-thread engagement. Built from high carbon high-speed steel and nitride treated for enhanced durability, it’s a trusted solution for machinists, maintenance professionals, and metalworkers who demand accuracy and performance across a range of materials and working conditions.
Bottoming tap geometry enables full thread cutting to the bottom of blind holes
High carbon HSS construction ensures strength and long-lasting durability
Nitride treatment enhances surface hardness and wear resistance
Straight flute design provides efficient chip removal
Bright finish improves lubricity and reduces friction
Standard square shank compatible with most tap wrenches
Enables precise, full-depth threading in blind holes
Perfect for both production and manual threading applications
Delivers reliable performance with extended tool life
Technical Specifications:
Thread Size: 1-1/2"-12
Type: Bottoming Tap
Material: High Carbon High-Speed Steel (HSS)
Coating: Nitride
Flute Style: Straight
Shank Style: Standard Square
Country of Origin: Made in USA
Product identification
- Brand: Drillco
- Model / MPN: 20N232FB





