Westward
Westward 5TWD9 Spiral Point Tap 1/2"-13 UNC 3 Flutes Bright
Cuts internal UNC threads in a 1/2"-13 hole using a three-flute high-speed steel spiral point design
- TypeHole, Drill, Bore & Wire Gauges
- Cuts threads efficiently with spiral point design
- Handles 1/2"-13 UNC threads in through-holes
- Three flutes clear chips for smoother tapping
- High-speed steel resists wear during repeated use
- Bright finish suits general-purpose threading tasks
Westward Spiral Point Tap 1/2"-13 UNC
This Westward spiral point tap creates internal threads in through-holes. It features a 1/2"-13 UNC thread size and three flutes for efficient chip evacuation. The bright high-speed steel construction suits general-purpose threading tasks. Right-hand cutting direction matches standard fastener requirements.
Suited for through-hole threading in steel and iron
Machinists and maintenance technicians cutting new threads or chasing damaged ones in through-holes will find this tap effective. The plug chamfer starts threads easily in existing holes. Buyers needing a bottoming tap for blind holes or a coated tool for high-volume production should look at something else.
Thread limit H3 and class of fit 3B
The H3 thread limit and 3B class of fit determine the precise allowance and tolerance of the finished thread. These specifications decide whether the tap produces threads that meet the required engineering standard for the application. Verify these limits against the part drawing before purchase.
Highlights
- Cuts threads efficiently with spiral point design
- Handles 1/2"-13 UNC threads in through-holes
- Three flutes clear chips for smoother tapping
- High-speed steel resists wear during repeated use
- Bright finish suits general-purpose threading tasks
Specifications
| Brand | Westward |
|---|---|
| Type | Hole, Drill, Bore & Wire Gauges |
Questions about this item
How do I confirm the tap is cutting a proper 1/2"-13 UNC thread after setup?
Check that the thread gauge reads Class of Fit 3B and that the H3 limit matches the 1 21/32 in thread length on a test piece.
What comes in the box and what must I buy separately?
The box contains the single High Speed Steel spiral point tap with Bright uncoated finish; a matching drill bit, tapping fluid and handle are not included.
Which version should I choose for a standard right-hand 1/2"-13 UNC hole?
Select the 3-flute plug tap with H3 limit and 3 3/8 in overall length — it is the only version listed for that thread size.
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