Spiral flute 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, powder metallurgical HSS-E with steam tempered surface finish and 45° helix angle for 2.5xD blind hole threading in general purpose applications
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Coating name (Grade): | Steam Tempered |
Surface treatement: | Steam Tempered |
Basic standard group (BSG): | ISO 529 |
Body material code (BMC): | HSS-E-PM |
Brand Name: | Dormer |
Clamping width - millimeter (WSC): | 6,3 mm |
Connection diameter - millimeter (DCON MS): | 8 mm |
Hand (Cutting direction): | Right |
Flute helix angle (FHA): | 45 ° |
Flute count (NOF): | 3 |
Overall length - millimeter (OAL): | 72 mm |
Premachined hole diameter - millimeter (PHD): | 6.8 mm |
Tap chamfer style (TCS): | C 2 - 3 |
Thread diameter size (TDZ): | 8 |
Thread form type (THFT): | M - Metric coarse |
Thread pitch - millimeter (TP): | 1,25 mm |
Thread tolerance class (TCTR): | 6H |
Threading length - millimeter (THL): | 12 mm |
Usable length diameter ratio? (ULDR): | 2.5 XD |
Usable Length - millimeter (LU): | 31 mm |
Ordering code ISO: | E003M8 |