Description
Drillco 25A316B 2-1/4-8 HSS Bottoming Tap is designed for heavy-duty threading applications in industries such as oil field, gas exploration, and power generation. This 8-pitch tap accommodates larger diameters up to 4″ and features a bottoming geometry for threading to the bottom of blind holes. Made from premium grade high-speed steel (HSS) with a black oxide surface treatment, it offers extended tool life and enhanced wear resistance. The spiral point aids in efficient chip evacuation by ejecting chips through the bottom of the hole. Additionally, the reduced neck design provides improved clearance for deeper hole tapping. This tap includes a standard square shank for easy use with tap wrenches and powered machines. Proudly manufactured in the USA for dependable quality and performance.
Features:
- Ideal for large diameter threads up to 4″
- Suitable for oil field, gas exploration, and power generation applications
- Bottoming geometry for threading to the bottom of blind holes
- Made from premium grade HSS for extended tool life
- Black oxide surface treatment for improved durability
- Spiral point designed to eject chips through the bottom of the hole
- Reduced neck for better clearance in deep hole tapping
- Standard square shank compatible with tap wrenches and powered machines
Benefits:
- Enables precise threading in blind holes
- Enhances chip evacuation and reduces clogging
- Extends tool life with advanced coating and material
- Improves clearance for tapping deeper holes
- Ensures consistent and reliable thread quality
Technical Specifications:
- Model: 25A316B
- Type: HSS Bottoming Tap
- Size: 2-1/4″-8
- Series: 2500
- Material: Premium Grade High-Speed Steel (HSS)
- Geometry: Bottoming
- 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
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