top in the world as
No 1 tap manufacturer.
Together with the development of cutting technology, taps are getting more and more important. With consistent cutting and reliable performance, Yamawa taps answer the diversifying needs of users and their period.
Spiral fluted taps.
With high cutting performance, the taps eject chips smoothly. They can cut threads all the way to the bottom of blind holes.
They are recommended for blind hole tapping. The spiral flutes enable the tap to pull up chips out of the hole and leave no chips in the hole bottom.
They are most suitable for blind holes of sticky materials. Having high cutting performance, they show their superiority in such interrupted tapping as the tapping in the hole with key grooves.
Spiral pointed taps.
These taps have the spiral flutes which enable them to push forward chips out of hole.
Consistent thread cutting becomes available with these taps.
With left hand spiral flutes, these taps push forward the chips out of hole, most suitable for blind holes. The whole body of the spiral pointed taps is quite tough and consistent tapping is obtained from these taps.
Having the longest history on tap, Hand taps are the straight flute taps. Due to the toughness at cutting edge, Hand taps are suitable for hard materials.
They have 3 types, taper tap, plug tap and bottoming tap depending on chamfer length.
Depending on tapping condition, there are two cases in usage, the use of a set tap and the use of individual tap.
Since chips remain in the flute in very minute shape, Hand taps can be used for both blind holes and through holes.
Thread forming taps
With no cutting edge, can produce internal threads without chips.
These taps make threads by deforming the materials and do not produce chips. They are suitable for the blind holes of rather soft material. Thread forming taps do not have flutes for ejecting chips but may have grooves for smoothing oil supply. The feature of the formed threads is their toughness and their little looseness in pitch diameter.
In the joints of pipes and pipe shape parts, these pipe taps are used for only mechanical joints purpose.
In pipe taps there are two types, taps for parallel threads and taps for taper threads. The first cuts the parallel threads which are used for mechanical joints. The second cuts the taper threads which are used for pressure type joints such as water pipes and gas pipes.
High Performance Taps
High performance series only realized by Yamawa's No.1 technology. Tappings become possible in ultra high speed and ultra tough condition with Yamawa's high performance series.
HF series for ultra high speed cutting. Having strengthened and less run-out high precision shank, such ultra high speed cutting as is 5 times higher or 10 times higher than previous cutting and is required of CNC machines of high performance and high precision, became possible. With special design most suitable for that tapping condition, HF series have realized a long tool life as well.
Paying special consideration to ISO14001, HD series made possible the consistent cutting under such severe cutting condition as Dry tapping or Semi-dry tapping. With the surface treatment featuring anti-wear and anti-welding, HD series have realized high precision and high tool life.
Cemented carbide taps
The material is ultra micro grain carbide featuring anti-wear and high toughness.
Carbide taps are suitable for machining the products of large lot and the product of continuous machining. And these carbide taps are quite tough and have high resistance feature.