Spiral flute machine tap with chamfer form C with a 2 - 3 x P semi-bottoming lead, for Unified National Coarse thread UNC 1/2in with 13 TPI and 2B class of fit, dimensions according to ISO 529 standard with 9mm shank and 7.1mm square drive, powder metallurgical HSS-E with uncoated surface finish and 45° helix angle for 2.5 x D blind hole threading in general purpose applications.
Technical Specification
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Brand
Dormer
Manufacturer Part Number
E0231/2
Size (in)
1/2 - 13
Features & Benefits
E023 series
Thread form, unified coarse
Meets ISO 529 standards
Internal inch thread medium class of fit
Blind hole application
2.5 x D usable tool depth to diameter ratio
Semi-bottoming tap chamfer (2 -3 pitch lead)
Spiral flute geometry
45° helix angle (flute)
Right hand rotation/cutting