Specification Brand : Taps - Metric - Plug BulletPoint1 : Thread Diameter: 12mm BulletPoint2 : MM Pitch: .5 BulletPoint3 : Bottoming Taps have 1-2 threads of lead, for threading close to the bottom of a blind hole. BulletPoint4 : High Speed Steel. Ground Thread. BulletPoint5 : Please note that not all bottoming taps are flattened at the end. ItemName : 12mm x .5 Bottoming Tap, High Speed Steel ItemPackageQuantity : 1 ItemTypeKeyword : hand-threading-taps Manufacturer : Taps - Metric - Bottoming Material : High Speed Steel PartNumber : TAMB-12-.5 ProductDescription : High Speed Steel. Bottoming Style (Bottoming Taps have 1-2 threads of lead, for threading close to the bottom of a blind hole.) Ground Thread. Please note that not all bottoming taps are flattened at the end. Some manufacturers leave a point that you may have to grind off if going very close to the bottom of a hole. ProductSiteLaunchDate : 2005-02-13T00:00:00.000Z