Westward
Westward Hand Tap Set 3 PC HSS 1-8 H4 Limit
Three-piece HSS fractional tap set for cutting 1 in.-8 UNC right-hand threads with H4 limit
- TypeFractional
- Fractional UNC threading fits standard coarse-thread applications
- Three-piece set provides taper, plug and bottoming taps for complete thread cutting
- High-speed steel construction resists wear during repeated hand-tapping operations
- H4 thread limit ensures precise class-of-fit for 1 in.-8 UNC threads
- Right-hand, four-flute design clears chips efficiently in through or blind holes
1 Inch-8 UNC Tap Set
This Westward hand tap set contains three high-speed steel taps for cutting 1 inch-8 UNC threads. The H4 thread limit suits general-purpose through-hole and blind-hole work in steel and cast iron. Right-hand threads and four flutes provide standard chip evacuation for manual or machine tapping.
Build integration
Bright uncoated finish allows lubricant adhesion and easy inspection of cutting edges. The 2-1/2 inch thread length and 5-1/8 inch overall length fit standard tap wrenches and T-handles. No coating means the taps can be resharpened without stripping a surface treatment.
Capacity and headroom
Three taps cover taper, plug, and bottoming chamfers so one set completes a thread from start to finish. H4 limit gives standard class-of-fit tolerance; it will not meet tighter H3 or looser H5 requirements. Uncoated HSS wears faster in stainless steel or high-temperature alloys.
Highlights
- Fractional UNC threading fits standard coarse-thread applications
- Three-piece set provides taper, plug and bottoming taps for complete thread cutting
- High-speed steel construction resists wear during repeated hand-tapping operations
- H4 thread limit ensures precise class-of-fit for 1 in.-8 UNC threads
- Right-hand, four-flute design clears chips efficiently in through or blind holes
Specifications
| Brand | Westward |
|---|---|
| Type | Fractional |
Questions about this item
How many flutes does each tap have for chip evacuation?
Each tap in the set features four flutes designed to clear chips efficiently during threading operations.
What is the overall length of the taps when used continuously?
The taps measure 5 1/8 inches overall, providing reach for deeper holes while maintaining rigidity during extended use.
What tap wrench size is required to drive these 1 inch-8 UNC taps?
A tap wrench capable of holding a 1-inch diameter shank is needed to operate these fractional thread taps.
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