M3 - M16 Metric Coarse HSS-Co5 Spiral Point (Gun Nose) Tap (click for more options)
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Original price
$35.67
Original price
$29.60
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Original price
$129.43
Original price
$35.67
Current price
$25.67
$21.13
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$92.41
Current price
$25.67
- HSS-Co (Cobalt) Bright Finish Metric Coarse Spiral Point Machine Tap.
- HSS-Co Spiral Point (Gun Nose) Taps.
- Spiral point taps, also known as 'Gun nose taps', have straight flutes supplemented by angular cutting faces at the lead.
- The design of the cutting portion propels the swarf ahead of the tap leaving the flutes clear for the flow of coolant to the cutting teeth.
- Primarily designed for use in through holes, these taps can be used in blind holes provided that there is ample clearance beyond the threaded section to accommodate the swarf.
- The advantages of a gun nose tap are the shearing action of the angular cutting faces, which produces a fine finish on the threads and shallower flutes.
- This allows a stronger cross section throughout the tap.
- 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).
- 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.