Metric Spiral Point Tap Set

• M3 - M12 Metric Coarse Spiral Point Tap Set.

About Metric Coarse

• Angle of thread is 60 degrees.
• The crest is flat and the thread has clearance at the root allowing external thread and internal thread to engage well.
• Larger root radius and lower thread height enable easy screw thread processing and increase thread screw strength.
• The major diameter of external thread and pitch are specified by a simple numerical value (most commonly measured in millimetres).

About Spiral Point  Taps

• Are used for machine tapping blind and through holes where there is sufficient clearance to accomodate chips.
• Manufactured from HSS-Co5 this modern design tap uses straight flutes supplemented by angular cutting faces at the point to produce a fine finish on the threads.
• Shallower flutes achieve a stronger cross section allowing the tap to withstand greater cutting forces.

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