TPS UNF-1/4-28-M HETI
Spiral Flute Tap; 1/4″ - 28 Threads/" ; 3.15″ OAL ; 3 FL ; HSS ; TiN ; D6 ; Series 299
| Thread Diameter Size (TDZ) | 1/4″ | Flute Type | Spiral |
| Threads per Inch (TPI) | 28 Threads/" | Style | DIN 371 |
| Thread Standard | THFT | | fmax | 3 |
| Overall Length (OAL) | 3.15″ | Measurement Type | Inch |
| Thread Cutting Part Length (THL) | 0.394″ | Grade | HETI |
| Usable Length (LU) | 1.18″ | d max | 1/4″" |
| Connection Diameter Machine Side (DCONMS) | 0.276″ | ToolTypeName | Machine Blind Hole Taps |
| Flute Count (NOF) | 3 | L125 | 3.15″ |
| Flute Helix Angle (FHA) | 40 Degrees | Thread Form Type (THFT) | UN60 |
| Cutting Edge Material | HSS | Series/List # | 299 |
| Thread Tolerance Class (TCTR) | D6 | Application | | Deep Hole with Short Thread | Taps for Deep Blind Hole | Taps for Short Blind Hole | |
| Standard | DIN 371 | Body Material | HSS |
| Tool Type | Machine Blind Hole Taps | Drive Size (DRVS) | 0.217″ |
| Chamfer | 2.5P-3P | Thread Size | 1/4 - 28 |
| Coating | TiN |
Product Features
| Family Description | HSS spiral flute machine taps - unified fine threads, for a wide range of materials. | Country of Origin | S.Korea |
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Package Weight
0.05
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