Westward
Westward 5TWU0 Pipe Tap 1/2"-14 Semi-Bottoming 4 Flutes NPT hand tool
Cuts 1/2"-14 NPT threads with four-flute high-speed steel for clean, accurate pipe tapping
- TypeHole, Drill, Bore & Wire Gauges
- Cuts 1/2"-14 NPT threads with a semi-bottoming design
- Four flutes evacuate chips efficiently for clean threads
- High-speed steel construction resists wear during repeated use
- Bright uncoated finish suits general-purpose threading tasks
- Right-hand cutting direction matches standard pipe fittings
Pipe tap for NPT threads
The Westward 5TWU0 is a 1/2"-14 NPT pipe tap designed for cutting internal tapered threads in pipe and conduit fittings. It suits plumbers, maintenance technicians and metalworkers who need reliable thread engagement for fluid or gas systems.
Semi-bottoming design with four flutes
The semi-bottoming chamfer allows threading closer to the bottom of blind holes than a standard taper tap. Four flutes provide balanced chip evacuation and cutting stability in materials such as steel, stainless steel and cast iron.
NPT standard and drill-size constraint
The tap follows the NPT 3B class of fit with a 75 percent thread depth, requiring a 0.7031 in drill size for correct hole preparation. Thread length is 1 3/8 in within an overall length of 3 1/8 in, limiting the maximum threadable depth in a single pass.
Highlights
- Cuts 1/2"-14 NPT threads with a semi-bottoming design
- Four flutes evacuate chips efficiently for clean threads
- High-speed steel construction resists wear during repeated use
- Bright uncoated finish suits general-purpose threading tasks
- Right-hand cutting direction matches standard pipe fittings
Specifications
| Brand | Westward |
|---|---|
| Type | Hole, Drill, Bore & Wire Gauges |
Questions about this item
Will the 1/2"-14 NPT tap fit the same 0.7031 inch drill size I already use for other NPT threads?
Yes, the 75 percent thread drill size for this 1/2"-14 NPT tap is 0.7031 in, so it matches the drill you already use.
How can I confirm the tap is cutting a correct NPT thread after I start it?
Check that the thread gauge shows a Class 3B fit and that the thread length reaches 1 3/8 in on the workpiece.
Does the package include a handle or die stock for the 4-flute tap?
The box contains only the high-speed steel pipe tap; a tap wrench or handle must be purchased separately.
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