Westward
Westward Hand Tap Set HSS 5/8-11 H3 Limit PK3
Three-piece fractional tap set cuts UNC threads in 5/8-11 size with H3 limit and four-flute high-speed steel
- TypeFractional
- High-speed steel construction resists wear during threading
- UNC 5/8-11 thread standard matches common coarse-pitch applications
- H3 limit class provides precise fit for general-purpose tapping
- Four-flute design improves chip evacuation and thread finish
- Three-piece set supplies taper, plug and bottoming taps
Thread size and purpose
This Westward hand tap set cuts internal UNC threads at 5/8-11 with an H3 limit. The three-piece package supplies taper, plug and bottoming taps so a single set covers the full threading sequence. High-speed steel construction suits general-purpose cutting in steel and non-ferrous metals.
Setup checks before use
Verify the workpiece material is compatible with uncoated high-speed steel and that the drilled hole matches the 5/8-11 UNC tap drill size. Confirm right-hand thread direction matches the application and ensure the machine or hand holder can accommodate the 3 13/16 in overall length. Lubrication appropriate for the material should be prepared in advance.
Build quality and daily use
Bright uncoated finish on high-speed steel provides standard wear resistance for intermittent hand or machine tapping. Four-flute geometry aids chip evacuation in through and blind holes. The 1 13/16 in thread length gives sufficient cutting depth for typical fastener engagement while the H3 limit ensures standard class-of-fit tolerance.
Highlights
- High-speed steel construction resists wear during threading
- UNC 5/8-11 thread standard matches common coarse-pitch applications
- H3 limit class provides precise fit for general-purpose tapping
- Four-flute design improves chip evacuation and thread finish
- Three-piece set supplies taper, plug and bottoming taps
Specifications
| Brand | Westward |
|---|---|
| Type | Fractional |
Questions about this item
Does the set include the tap wrench or do I need to buy one separately?
The package contains three 5/8-11 UNC taps with four flutes each; a tap wrench is not included and must be purchased separately.
What does the H3 limit mean for choosing this tap over another class?
H3 is a standard pitch-diameter tolerance for general-purpose UNC threads, so this set suits typical through-hole or blind-hole work in steel or aluminium.
How deep can I cut threads with the 1 13/16 inch thread length in a single pass?
The 1 13/16 inch thread length sets the maximum continuous cutting depth; for deeper holes you will need to withdraw and clear chips or use an extension.
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