Spiral flute tap with chamfer form C with a 2-3xP semi-bottoming lead, for Unified National Fine thread UNF 8 with 36 TPI and 2B class of fit, dimensions according to ISO 529 standard with 4.5mm shank and 3.55mm square drive, powder metallurgical HSS-E with steam tempered surface finish and 45 Degree helix angle for 2.5xD blind hole threading in general purpose applications.
| Connection Diameter (Inch) | 0.1772" |
| Overall Length (Inch) | 2.0866" |
| Clamping Width (mm) | 3.55mm |
| Thread Diameter (mm) | 4.166mm |
| No of Flutes | 3 |
| Flute Helix Angle | 45 |
| Usable Length (mm) | 17mm |
| Clamping Length | 6 |
| Thread Diameter Size | 8 |
| Threading Length (mm) | 7mm |
| Material Code | HSS-E-PM |
| Thread Tolerance Class | 2B |
| Cutting Direction | Right Hand |
| Coating | Steam Tempered |
| Tap Chamfer Style | C 2-3 |
| Surface Color | Black |
| Thread Form | UNF-Unified Fine |
| Country of origin | India |
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