E557 - M8 x 1.25 Metric Dormer HSS Spiral Flute Machine Tap Bright Finish - For General Use
E557M8
E557 (M)
Spiral Flute Power Tool Tap with chamfer form C with a 2-3xP semi-bottoming lead, for ISO-Metric thread M8 with 1.25 mm pitch and 6H class of fit, dimensions according to ISO 529 standard with 8.0mm shank and 6.3mm square drive, HSS with bright finish and 35° helix angle for 2xD blind hole threading in general purpose applications.
| Thread Diameter Size (TDZ) | M8 |
| Thread Pitch (TP) | 1.25mm |
| Overall Length (OAL) | 72.0mm |
| Threading Length (THL) | 15mm |
| Connection Diameter (DCON MS) | 8.00mm |
| Clamping Width (WSC) | 6.30mm |
| Clamping Length (LSC) | 9mm |
| Flute Count (NOF) | 3 |
| Pre-machined Hole Diameter (PHD) | 6.80mm |
| Usable Length (LU) | 35.00mm |
E557M8