Emkay tools manufactures fluteless taps for producing internal threads by action similar to thread rolling and material displacement rather than removing chips. The company provides these fluteless taps with no flutes or cutting edges but like screw with lobe design. These fluteless taps are available with advantages over conventional thread cutting taps like no chips are produced since threads are produced by cold forming process; chance of tap breakage is minimized; easier blind hole tapping thus eliminating tap breakage. The fluteless taps come with strong threads because grain fibres are not cut, but thread is formed by material displacement. The strength of threads made by the roll form taps is approved by pull test or torque tension tests. The technical specifications of the fluteless taps are better control of tapped hole size; guaranteed surface finish and absolute accuracy of thread because of cold forming; faster tapping speed and increased productivity; and increased tool life due to strong core area. The fluteless taps have greater rigidity and better strength in core portion because there are no flutes and less risk of breakage in small sizes. These fluteless taps are useful for applications in wide range of aluminium, steel, copper [soft], brass [long chipping], magnesium, zinc alloys, etc.
