Description

Drillco 25A432P 3-1/2-8 HSS Plug Tap is designed for heavy-duty threading applications in industries such as oil field, gas exploration, and power generation. These 8-pitch taps are sized for larger diameters up to 4″ and feature a plug geometry ideal for general threading. Made from premium grade high-speed steel with spiral flutes to efficiently evacuate chips, this tap ensures clean threads while the black oxide surface treatment extends tool life. The reduced neck design allows better clearance in deeper holes.

Features:

3-1/2″-8 size 8-pitch plug tap for larger diameter threading
Constructed from premium grade high-speed steel (HSS) for long-lasting durability
Spiral flute design improves chip evacuation and prevents thread damage
Black oxide surface treatment for enhanced wear resistance and corrosion protection
Reduced neck for improved clearance in deeper holes
Available in bottoming geometry for full thread tapping options
Made in the USA under strict quality controls

Benefits:

Ideal for demanding industrial environments such as oil fields and power plants
Efficient chip removal reduces risk of tap clogging and thread damage
Black oxide finish extends tool life and resists corrosion
Reduced neck improves usability in deep hole applications

Technical Specifications:

Model: 25A432P
Thread Size: 3-1/2″-8
Pitch: 8-pitch
Geometry: Plug (also available in bottoming)
Material: Premium grade high-speed steel (HSS)
Finish: Black oxide
Special Features: Spiral flutes, reduced neck for clearance
Application: Heavy industrial threading for oil field, gas exploration, and power generation