Westward
Westward Hand Tap Set M8-1.25 D5 3 PC HSS
Three-piece high-speed steel tap set cuts M8 × 1.25 metric coarse threads to a D5 limit
- TypeMetric
- Metric M8 coarse thread cuts standard holes
- D5 limit class fits common tolerance specs
- High-speed steel resists wear in steel and iron
- Four-flute design clears chips for smoother cutting
- Three-piece set provides taper, plug and bottoming taps
Metric M8 Hand Tap Set
This three-piece Westward set provides the taps needed to cut M8 x 1.25 metric coarse threads in a range of materials. The high-speed steel construction offers durability for general-purpose threading tasks. Right-hand thread direction suits standard fastening applications. It is intended for mechanics and fabricators creating new internal threads or restoring damaged ones.
D5 Thread Limit Fit
The D5 limit defines the pitch-diameter tolerance that determines whether the finished thread meets the required class of fit. Selecting the correct limit is the single specification that decides if this set produces acceptable threads for the application. An incorrect limit yields threads that are too tight or too loose for the mating fastener.
Three-Tap Through-Hole Capacity
The set includes taper, plug and bottoming taps to start, advance and finish threads in through-holes up to the 1 1/8 inch thread length. Blind holes deeper than the bottoming tap chamfer will require additional tooling not included here. The 2 23/32 inch overall length gives adequate reach for most bench work.
Highlights
- Metric M8 coarse thread cuts standard holes
- D5 limit class fits common tolerance specs
- High-speed steel resists wear in steel and iron
- Four-flute design clears chips for smoother cutting
- Three-piece set provides taper, plug and bottoming taps
Specifications
| Brand | Westward |
|---|---|
| Type | Metric |
Questions about this item
What does the M8-1.25 thread size mean for the holes I need to tap?
The set cuts metric coarse threads with an 8 mm major diameter and a 1.25 mm pitch, matching standard M8 coarse fasteners used in automotive and machinery repairs.
How does the D5 thread limit affect the fit of the finished threads?
D5 is a tighter tolerance class that produces slightly smaller pitch diameters, giving a snugger fit for precision assemblies or when plating will be added later.
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