Metric Spiral Flute Tap Set

• M3 - M12 Metric Coarse Spiral Flute 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 Flute Taps

• Are used for machine tapping in all blind hole applications especially in soft metals that produce long stringy swarf such as aluminium copper and magnesium.
• Manufactured from HSS-Co5 this modern design tap uses the shear action provided by the spiral flutes to draw the swarf out of the hole which minimises swarf clogging when tapping deeper holes.

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