SPECIAL TAPS для заказа - kyocera@kyocera-tools.ru
STYLE GUIDE
TAP STYLE GUIDE
DRILLS HAND TAP
SPIRAL POINT TAP
END MILLS HAND TAP #1 EXTENSION TAP #4
ROUTERS These standard style taps have straight flutes of a These taps are made to conventional tap dimensions,
number specified as either standard or optional. Hand except that they have an extended shank to tap hard to
THREAD MILLS taps are for general purpose applications such as reach or holes that are inaccessible with standard length
& TAPS production tapping or hand tapping operations. Taper, taps. Thread length, shank diameter, and shank square
plug and bottoming styles provide versatility in tough are made to standard specifications listed on Page 198.
materials, blind and through holes. Extension taps are available in both hand and spiral point
styles, and in small shank style.
ENGRAVERS SPIRAL POINT TAP #2
As to general physical dimensions, spiral point taps are THREAD FORMING TAP #5
identical with the standard hand tap. However, the spiral
BORING BARS point tap has the cutting face of the first few threads cut These taps have no flutes except as optionally designed
at a predetermined angle relative to the tap’s axis angle with one or more lubrication grooves. The thread form
REAMERS to force the evacuation of chips ahead of the cutting is lobed so there is a finite number of points contacting
action. This feature, plus the excellent shearing action of the work. This tap does not cut metal, so it is ‘chipless’,
the flute, make spiral pointed taps ideal for production and consequently will not cause a chip problem. The
tapping of through holes. Typically, this type of tap has tool forms the thread by extrusion, thus thread size
a shallower flute passage than conventional taps. This can be closely maintained. The fluteless design allows
gives the spiral point tap more cross-sectional area, high quality threads, faster tapping speeds, higher
which means greater strength, allows higher tapping production, and generates no chips which simplifies
speeds, and requires less power to drive. tapping of blind bottoming holes (threads can be formed
the full depth of the hole).
SAWS
TECHNICAL S.T.I. TAP #3 SPIRAL FLUTED TAP #6
INDEX S.T.I. (Screw Thread Insert) Taps are special taps for helical These taps, as the name implies, are made with spiral
coil wire screw thread inserts, which provide positive flutes instead of straight flutes. This spiral fluting feature
means for protecting and strengthening tapped threads in aids in drawing chips out of a hole, or serves to bridge
any material. These STI taps are correctly sized to produce a gap inside the hole such as a keyway or cross-hole.
an internal thread that accomodates a helical coil wire Commonly available in slow spiral (25-30° helix angle) or
screw thread insert. The insert, in turn, will accept a screw fast spiral (45-60°).
thread of the nominal size and pitch at final assembly.
Screw thread inserts provide stronger tapped threads
(stronger assemblies) due to a more balanced distribution
of loads throughout the length of thread engagement.
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