Vermont Tap & Die - 1/4-28 UNF 3B 4 Flute Bright Finish High Speed Steel Straight Flute Standard Hand Tap - Taper, Left Hand Thread, 63.5mm OAL, 25.4mm Thread Length, H3 Limit, Oversize
Item #: 33163262
Brand: Vermont Tap & Die
Model #: 317532
Exact Tooling IR#: 04
Features and Benefits
Taper chamfers also known as starter taps have a longer chamfer and require a less aggressive cutting action. They have 7 to 10 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 | |
|---|---|
| Tap Type | Standard Hand Tap |
| Thread Size (Inch) | 1/4-28 |
| Class of Fit | 3B |
| Thread Limit | H3 |
| Number of Flutes | 4 |
| Chamfer | Taper |
| Material | High Speed Steel |
| Finish/Coating | Bright |
| Thread Direction | Left Hand |
| Through Coolant | NonThrough Coolant |
| Thread Standard | UNF |
| Overall Length (Decimal Inch) | 2.50000 |
| Overall Length (mm) | 63.50 |
| Oversize | No |
| Series/List | 3105L |
| Thread Length (Decimal Inch) | 1.0000 |
| Thread Length (mm) | 25.40 |
| Shank Diameter (Decimal Inch) | 0.2550 |
| Shank Diameter (mm) | 6.48 |
| Square Size (Decimal Inch) | 0.1910 |
| Square Size (mm) | 4.85 |
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