Regal Cutting Tools - 5/16-18 UNC 3 Flute 3B Bottoming Spiral Flute Tap - High Speed Steel, Bright Finish, 2-23/32" OAL, Right Hand Flute, Right Hand Thread, H3
Item #: 42781112
Brand: Regal Cutting Tools
Model #: 008399AS
Exact Tooling IR#: 04
Features and Benefits
Bottoming chamfers are used for threading blind holes. They have 1 to 2 threads.
High Speed Steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 5/16-18 |
| Chamfer | Bottoming |
| Class of Fit | 3B |
| Thread Limit | H3 |
| Number of Flutes | 3 |
| Material | High Speed Steel |
| Finish/Coating | Bright |
| Thread Direction | Right Hand |
| Flute Direction | Right Hand |
| Through Coolant | NonThrough Coolant |
| Overall Length (Decimal Inch) | 2.7188 |
| Overall Length (Inch) | 2-23/32 |
| Helix Angle | 30 |
| Thread Standard | UNC |
| Oversize | No |
| Thread Length (Decimal Inch) | 1.1250 |
| Thread Length (Inch) | 1-1/8 |
| Flute Type | Medium Spiral |
| Shank Diameter (Decimal Inch) | 0.3180 |
| Square Length (Inch) | 3/8 |
| Material Application | Aluminum; Stainless Steel |