Westward
Westward Hand Tap Set 3 PC HSS M20-2.5 D7 Limit
Three-piece high-speed steel metric tap set cuts M20 x 2.5 threads to D7 limit
- TypeMetric
- Metric coarse M20 x 2.50 thread for standard fits
- High-speed steel construction resists wear in repeated use
- D7 limit class ensures precise pitch diameter control
- Three-piece set provides taper, plug and bottoming taps
- Right-hand 4-flute design clears chips efficiently
Three-piece M20 tap set
This Westward hand tap set contains three high-speed steel taps for cutting M20 x 2.5 metric coarse threads. Each tap has a 2 inch thread length and an overall length of 4 15/32 inches with four flutes and a right-hand thread direction. The bright uncoated finish suits general-purpose threading in steel and non-ferrous metals.
D7 limit for oversize threads
The D7 thread limit produces a pitch diameter larger than the basic size, allowing for plating buildup or loose fit requirements. High-speed steel construction maintains cutting edges during repeated hand-tapping operations. Four flutes provide chip clearance and reduce torque when advancing through the workpiece.
Verify hole size and material compatibility
Check that your tap drill matches the M20 x 2.5 specification before ordering. Confirm the workpiece material is suitable for uncoated high-speed steel taps. Ensure you have a tap wrench that accommodates the 4 15/32 inch overall length for proper leverage.
Highlights
- Metric coarse M20 x 2.50 thread for standard fits
- High-speed steel construction resists wear in repeated use
- D7 limit class ensures precise pitch diameter control
- Three-piece set provides taper, plug and bottoming taps
- Right-hand 4-flute design clears chips efficiently
Specifications
| Brand | Westward |
|---|---|
| Type | Metric |
Questions about this item
Does the HSS material in these M20-2.5 taps generate much heat during all-day threading?
High-speed steel handles extended cutting without excessive heat buildup if you use proper cutting fluid and keep speeds moderate.
What tap wrench or holder do I need for the 4 15/32 in overall length and 4-flute design?
A standard adjustable tap wrench that fits the shank diameter works; the 4-flute geometry does not require a special holder.
Will the D7 limit and right-hand threads cut cleanly into my older mild-steel plates?
The D7 limit gives a slightly oversize thread for coating allowance, and right-hand coarse pitch cuts mild steel reliably.
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