Description

Drillco 25A248B 1-3/4-8 HSS Bottoming Tap is specifically designed for heavy-duty threading applications typical in oil field, gas exploration equipment, and power generation plants. Suitable for larger diameter threads up to 4″, this bottoming tap provides full thread engagement close to the bottom of blind holes, ensuring precise and complete threading. Constructed from general purpose high-speed steel, it offers reliable performance and durability in demanding industrial environments.

Features:

1-3/4-8 bottoming tap for full thread depth in larger diameters
Made from general purpose high-speed steel (HSS) for dependable use
Available in plug and bottoming geometries for versatility
Spiral point design to eject chips through the bottom of the hole
Bright finish for enhanced lubricity and smoother cutting
.005 oversized threads for improved fit and strength
Standard square shank for compatibility with tap wrenches and powered machines
Made in USA ensuring quality manufacturing

Benefits:

Enables threading close to the bottom of blind holes for precise applications
Durable construction ideal for heavy-duty industrial use
Efficient chip evacuation reduces clogging and downtime
Compatible with manual and machine tapping operations
Oversized threads provide stronger thread engagement

Technical Specifications:

Model: 25A248B
Thread Size: 1-3/4-8
Tap Type: Bottoming
Material: General Purpose High-Speed Steel (HSS)
Geometry: Bottoming
Flute Type: Spiral Point
Finish: Bright
Shank Type: Standard Square
Thread Oversize: .005 Oversized Threads
Application: Heavy-duty threading for oil field, gas exploration, and power generation equipment