GUN TAP: BSW 1/4″ X 20 SPIRAL POINT (SOMTA)

* UNC (Unified National Course) This is a standard thread form adopted by countries like, USA, Canada and UK. * * Manufactured from quality HSS-M2 for durability and long service life * Thread Profile: Similar to Metric and is 60deg form * The crest is flat and the thread has a clearance at the root allowing internal and external to mate easily. Spiral point taps have the same general physical dimensions as standard straight flute taps. However, the spiral point tap has the cutting face of the first few threads cut at a predetermined angle relative to the tap's axis angle to force the evacuation of chips ahead of the cutting action..

* UNF (Unified National Fine) This is a standard thread form adopted by countries like, USA, Canada and UK. * Manufactured from quality HSS-M2 for durability and long service life * Thread Profile: Similar to Metric and is 60deg form * The crest is flat and the thread has a clearance at the root allowing internal and external to mate easily. Spiral point taps have the same general physical dimensions as standard straight flute taps. However, the spiral point tap has the cutting face of the first few threads cut at a predetermined angle relative to the tap's axis angle to force the evacuation of chips ahead of the cutting action.

l* UNF (Unified National Fine) This is a standard thread form adopted by countries like, USA, Canada and UK. * Manufactured from quality HSS-M2 for durability and long service life * Thread Profile: Similar to Metric and is 60deg form * The crest is flat and the thread has a clearance at the root allowing internal and external to mate easily. * This fine thread stripping and is better than the coarse thread when internal and external threads are engaged and subject to load * This tread is also used when there is a limitation on the length of engagement.

* This is a Metric Spiral Point (Gun) machine tap * Manufactured from quality HSS-M2 for durability and long service life * Suitable for tapping blind or through holes * Straight flute with angular cutting face at point * Flutes are shallow and can stand a greater force * Avery popular machine tap for general purpose use