Drillco bottoming tap details
Drillco 1-1/8-12 Nitro Bottoming Tap (20N208FB)
Drillco 20N208FB 1-1/8-12 HSS Nitro Bottoming Tap is a precision-engineered straight flute hand tap designed for clean, accurate threading to the bottom of blind holes. Ideal for both manual and machine operations, this tap is crafted from high-speed steel and finished with a nitro (black oxide) coating for added durability and reduced friction. Whether you're working in maintenance, repair, or production environments, this USA-made tool ensures dependable performance in tough applications.
Constructed from high-speed steel (HSS) with high carbon content for enhanced strength and wear resistance.
Nitro (black oxide) finish improves lubricity and extends tool life.
Bottoming chamfer ideal for threading to the bottom of blind holes.
Straight flute design supports efficient chip evacuation and smooth threading.
Square shank compatible with standard tap wrenches and holders.
Perfect for finishing threads in blind holes where full thread depth is required.
Performs consistently in both ferrous and non-ferrous materials.
Reliable choice for production, maintenance, or general-purpose threading tasks.
Technical Specifications:
Thread Size: 1-1/8-12
Type: Bottoming Tap
Material: High Speed Steel (HSS)
Finish: Nitro (Black Oxide)
Flute Type: Straight
Chamfer: Bottoming
Country of Origin: USA
Product identification
- Brand: Drillco
- Model / MPN: 20N208FB





