Description
Drillco 28A300AP 30MM-3.50 4FL Plug Tap is a versatile straight flute hand tap engineered for producing accurate threads in a wide variety of materials. Ideal for both manual and production tapping operations, this plug tap features a geometry suited for through and blind holes, providing excellent chip clearance and consistent thread quality. Crafted from general purpose high-speed steel (HSS) with a black oxide surface treatment, it offers improved durability and corrosion resistance. The 118° conventional point ensures rapid penetration, making it suitable for most tapping applications. This tap is manufactured in the USA and designed with a standard square shank for easy use with tap wrenches and powered machines.
Features:
- Made from general purpose high-speed steel (HSS)
- 118° conventional point for rapid penetration
- Black oxide surface treatment for improved tool life
- Jobber length suited for most applications
- Standard square shank compatible with tap wrenches and powered machines
Benefits:
- Provides reliable thread cutting in a wide range of materials
- Enhanced durability and corrosion resistance from black oxide coating
- Rapid penetration with 118° point reduces tapping time
- Versatile jobber length for various tapping tasks
Technical Specifications:
- Model: 28A300AP
- Type: 4-Flute Plug Tap
- Size: 30MM x 3.50
- Geometry: Plug
- Material: General Purpose High-Speed Steel (HSS)
- Finish: Black Oxide
- Point Angle: 118° Conventional
- Shank: Standard Square
- Application: General machine tapping for through and blind holes
- Country of Origin: USA






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