OSG - 1/2-14 NPTF, 15° Helix, 4 Flutes, Bottoming Chamfer, Oxide Finish, High Speed Steel, Spiral Flute Pipe Tap - 11/16" Shank Diam, 1-3/8" Thread Length, 0.4687" Projection, 0.515" Square Size, Series S125
Item #: 72323835
Brand: OSG
Model #: 1252201
Exact Tooling IR#: 04
Features and Benefits
NPTF (National Pipe Taper Fuel) refers to Dryseal American National Standard Tapered Pipe Threads. They do not require a sealant due to being formed by metal to metal contact.
High Speed Steel (HSS) provides good wear-resistance and can be used in general purpose applications for both ferrous and non-ferrous materials.
Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.
Bottoming chamfers are used for threading blind holes to the bottom. They have 1 to 2 threads.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 1/2-14 |
| Thread Standard | NPTF |
| Material | High Speed Steel |
| Finish/Coating | Oxide |
| Number of Flutes | 4 |
| Helix Angle | 15 |
| Overall Length (Inch) | 3-1/8 |
| Thread Length (Inch) | 1-3/8 |
| Series/List | S125 |
| Shank Diameter (Decimal Inch) | 0.6875 |
| Square Size (Decimal Inch) | 0.5150 |
| Material Application | Aluminum; Cast Aluminum; Cast Iron; Hardened Steel; High Carbon Steel; Low Carbon Steel; Medium Carbon Steel |
| Projection (Decimal Inch) | 0.4687 |
| Chamfer | Bottoming |
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