VTSFT65155-WP49EG IS A  M4X0.7  ISO3 6G 3Flute, Right Hand cut, spiral flute C DIN371 HSS-e X VTSFT6515-wp49eg IN Metric P HSS-e Taps .21mm reach,11mm thread lng 4.5MM SHANK 1772mm .5 63MM OAL, 6G MultiPurpose Taps VariTap Spiral-Flute HSS-e Taps Blind Hole Right Hand Helix/Flute