The 55° taper pipe thread (BSPT / PT) is widely used in piping systems requiring strong sealing performance. To achieve a leak-proof connection, high-precision cutting tools are essential.
Our 55° taper pipe thread tap made of premium HSS-E (Cobalt High-Speed Steel) is engineered for producing accurate, sealing-grade threads in steel, stainless steel, copper, and aluminum components.
It is the ideal tool for hydraulic fittings, valves, pneumatic systems, and pressure pipelines.
1. Product Overview
This tap is specially designed for machining conical pipe threads that seal through metal-to-metal tightening.
The HSS-E material provides outstanding hardness, heat resistance, and wear resistance, ensuring smooth cutting and extended tool life.
Suitable for machining:
-
- Stainless steel
-
- Alloy steel
-
- Carbon steel
-
- Copper and aluminum
-
- Hydraulic connectors, valve bodies, pipe fittings
2. Key Features and Benefits
1. HSS-E cobalt steel for superior durability
The added cobalt content enhances hot hardness, enabling the tap to remain sharp even under elevated cutting temperatures.
2. Accurate 55° taper thread geometry
-
- Standard 1:16 taper
-
- High-precision tooth angle
-
- Reliable pressure sealing
-
- Leak-free tightening for gas and fluid systems
3. CNC-ground flutes for smooth cutting
Professional multi-axis grinding brings:
-
- Lower cutting torque
-
- Better chip evacuation
-
- Longer tool life
4. Suitable for manual and machine tapping
Compatible with:
-
- Hand tapping
-
- Drill presses
-
- Tapping machines
-
- CNC machining centers
5. Available in full range of sizes & OEM customization
Standard sizes: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2″
Customization options:
-
- Special lengths
-
- TiN / TiAlN coatings
-
- Reinforced flute designs
-
- Non-standard taper requirements
3. Application Industries
Hydraulic and pneumatic fittings Water and gas pipe systems Oil and fluid lines Valves and pressure control components General pipe fitting manufacturing
4. How to Choose the Right Tap?
Consider:
-
- Thread standard (55° BSPT)
-
- Workpiece material
-
- Hole depth and machining method
-
- Required sealing performance
Need assistance? Our engineering team offers free tool selection support.
