Drillco 25A324T 2-3/8-8 HSS Taper Tap is engineered for heavy-duty threading applications in demanding industries such as oil field, gas exploration, and power generation. This 8-pitch taper tap accommodates larger diameters up to 4″ and features a taper geometry to ease thread engagement and reduce threading torque. Made from premium grade high-speed steel (HSS) with a black oxide surface treatment, it offers enhanced tool life and wear resistance. The spiral point design efficiently ejects chips through the bottom of the hole, preventing clogging. Additionally, the reduced neck provides improved clearance for deeper hole tapping. This tap includes a standard square shank for compatibility with tap wrenches and powered machines. Proudly manufactured in the USA for dependable quality and performance.
Features:
- Designed for large diameter threads up to 4″
- Ideal for oil field, gas exploration, and power generation applications
- Taper geometry for easier thread engagement and reduced torque
- Made from premium grade HSS for extended tool life
- Black oxide surface treatment for increased durability
- Spiral point to eject chips through the bottom of the hole
- Reduced neck for better clearance in deep hole tapping
- Standard square shank for use with tap wrenches or powered machines
Benefits:
- Facilitates smooth and precise threading
- Improves chip evacuation and reduces clogging
- Extends tool life with advanced materials and coating
- Allows better access and clearance in deep holes
- Ensures consistent, reliable thread formation
Technical Specifications:
- Model: 25A324T
- Type: HSS Taper Tap
- Size: 2-3/8″-8
- Series: 2500
- Material: Premium Grade High-Speed Steel (HSS)
- Geometry: Taper
- Coating/Finish: Black Oxide Surface Treatment
- Chip Evacuation: Spiral Point
- Special Feature: Reduced Neck for Deep Hole Clearance
- Shank: Standard Square
- Country of Origin: USA








