DORMER - 1/4-18 NPT, 5 Flutes, Bright Finish, High Speed Steel, Interrupted Thread Pipe Tap - 2.9528 Inch Overall Length, 9/16 Inch Shank Diameter, 1-1/16 Inch Thread Length, 0.421 Inch Square Size, 0.6929 Inch Projection, Bottoming Chamfer, Series E711
Item #: 65677486
Brand: DORMER
Model #: 0099940
Exact Tooling IR#: 04
Features and Benefits
NPT (National Pipe Taper) refers to American National Standard Taper Pipe Threads. They are commonly used for general purpose applications and require a sealant.
High Speed Steel (HSS) provides good wear-resistance and can be used in general purpose applications for both ferrous and non-ferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Bottoming chamfers are used for threading blind holes to the bottom. They have 1 to 2 threads.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 1/4-18 |
| Thread Standard | NPT |
| Material | High Speed Steel |
| Finish/Coating | Bright |
| Number of Flutes | 5 |
| Overall Length (Decimal Inch) | 2.9528 |
| Thread Length (Decimal Inch) | 1.0630 |
| Shank Diameter (Decimal Inch) | 0.5630 |
| Square Size (Decimal Inch) | 0.4213 |
| Material Grade | M2 |
| Material Application | Alloy Steel; Aluminum Alloys; Carbon Steel; Cast Iron; Copper Alloys; Hardened Steel; Steel; Structural Steel; Thermoplastics |
| Series/List | E711 |
| Chamfer | Bottoming |
| Projection (Decimal Inch) | 0.6929 |
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