Spiral flute tap with chamfer form C with a 2-3xP semi-bottoming lead, for ISO-Metric thread M4 with 0.70 mm pitch and 6H class of fit, dimensions according to DIN 371 standard with 4.5mm shank and 3.4mm square drive, powder metallurgical HSS-E with bright finish and 45° helix angle for 2.5xD blind hole threading in free machining and plain carbon steel and wrought or cast aluminium
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Coating name (Grade): | Bright |
Surface treatement: | Original surface |
Basic standard group (BSG): | DIN 371 |
Body material code (BMC): | HSS-E-PM |
Brand Name: | Dormer |
Clamping width - millimeter (WSC): | 3,4 mm |
Connection diameter - millimeter (DCON MS): | 4.5 mm |
Hand (Cutting direction): | Right |
Flute helix angle (FHA): | 45 ° |
Flute count (NOF): | 3 |
Overall length - millimeter (OAL): | 63 mm |
Premachined hole diameter - millimeter (PHD): | 3.3 mm |
Tap chamfer style (TCS): | C 2 - 3 |
Thread diameter size (TDZ): | 4 |
Thread form type (THFT): | M - Metric coarse |
Thread pitch - millimeter (TP): | 0,7 mm |
Thread tolerance class (TCTR): | 6H |
Threading length - millimeter (THL): | 7 mm |
Usable length diameter ratio? (ULDR): | 2.5 XD |
Usable Length - millimeter (LU): | 21 mm |
Ordering code ISO: | EX00M4 |