Triumph Twist Drill - 1/4-28, 2 Flute, Bottoming, Plug & Taper, Oxide Finish, High Speed Steel Tap Set - Right Hand Cut, 3/3B Class of Fit
Item #: 55827638
Brand: Triumph Twist Drill
Model #: 71601
Exact Tooling IR#: 04
Features and Benefits
Bottoming chamfers have 1 to 2 threads. Plug chamfers have 3 to 5 threads. Taper chamfers have 7 to 10 threads and are typically used as a starter tap. They all can be used for threading blind holes.
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.
| Product Specifications | |
|---|---|
| Thread Size | 1/4-28 |
| Number of Flutes | 2 |
| Chamfer | Bottoming; Plug; Taper |
| Material | High Speed Steel |
| Finish/Coating | Oxide |
| Thread Direction | Right Hand |
| Class of Fit | 3/3B |
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