Straight fluted Armstrong ArmaCoil taps made undersize to reduce the load on the ArmaCoil Finishing Tap and particularly for difficult tapping operations.
Recommended for use when tapping steels of close tolerance fits as required, reducing wear on the ArmaCoil Finishing Tap.
A tap designed for hand or machine tapping in through holes and blind holes where ample chip clearance is available. The lead chamfer permits easier starting and requires less tapping torgue than ArmaCoil Bottoming Taps.
The Armstrong ArmaCoil Bottoming Tap is used for tapping blind holes when maximum full form threads are required in minimum depth holes.
The Armstrong ArmaCoil Spiral Point Tap is designed primarily as a machine tap for tapping through holes. The spiral point is formed in the lead teeth at an angle to the tap axis. The swarf, due to the cutting action, is pushed forwards ahead of the tap. The flutes of the ArmaCoil Spiral Point Tap serve only to deliver coolant to the cutting edges, therefore much shallower flutes are used. Subsequently, the tap has greater strength and makes precise tapping possible.
Not recommended on abrasive materials.
Armstrong ArmaCoil Screw Thread Insert Taps
ArmaCoil Roughing Tap
ArmaCoil Finishing Tap
ArmaCoil Bottoming Tap
A tap designed with spiral flutes in the same “hand” as the thread. This directs the swarf backwards out of the hole. Recommended for blind or deep hole applications in soft (eg. aluminium) materials.
Due to the suitability for blind hole tapping, the lead chamfer is normally that of a bottoming tap.
ArmaCoil Spiral Point Tap (Machine Tap)
ArmaCoil Spiral Flute Tap (Machine Tap)
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