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Vermont Taps
Straight Fluted Hand Taps
 These
are general purpose taps used for a wide variety of hand and
machine tapping applications. They are available, in most
cases, in taper, plug, and bottoming chamfers and in various
numbers of flutes.
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Spiral Pointed Taps
These taps have a special angular grind at the point which
shears chips and drives them ahead of the tap. Advantages
are reduced tapping torque and increased speed in through
hole tapping.
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Spiral Fluted Taps
These taps are manufactured with spiral flutes for increased
chip clearing efficiency in soft materials in which stringy
chips are generated. Especially useful in tapping deep or
blind holes, and in bridging keyways, these taps are available
with regular or high helix flutes.
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Fluteless or Forming Taps
Forming taps generate threads by displacing rather than cutting
metal, thereby eliminating or greatly reducing chips. They
are especially useful for applications in which chips cannot
be tolerated. CNC Forming taps are designed to allow tapping
harder and tougher materials than have been successfully tapped
with other forming taps.
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Extra Length Taps
Vermont Tap & Die produces, as standard and special, five
different types of taps with extra long shanks that permit
tapping in deep or obstructed areas. They are extension taps,
pulley taps, nut taps, taper taps, and taper pipe taps (extra
length). Of these, nut taps, taper taps, and extension taps
7/16” and larger have shank diameters smaller than the
minor diameter of the nut being tapped.
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Pipe Taps
Taps for internal threading of pipe, pipe fittings, or holes
in which threaded pipe is to be assembled are pipe taps. The
types of pipe taps manufactured by Vermont Tap & Die as
standard include: Taper Pipe Taps in regular or interrupted
thread; Extra Length Taper Pipe Taps in regular or interrupted
thread; and Straight Pipe Taps. Interrupted thread pipe taps
are manufactured with alternate teeth removed on adjacent
lands (with the exception of the first few threads at the
point). Designed for tapping certain tough metals or those
which tend to tear or load the cutting teeth, these taps are
to be used only when regular full thread taps fail.
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Specials
How to Order Special Taps:
You will need to know the following information in order to
receive the best tap for your application:
- Quantity
- Type of tap (hand tap, pipe tap, etc.)
- Left hand (LH) or Right hand (RH)
- Nominal Size and number of threads per inch (TPI)
- General Dimensions: overall length (OAL), thread length,
shank diameter
- Type of length or chamfer
- Pitch diameter limits of tap or class of fit required
or pitch diameter limits of gage
- Threads: form, single or multiple
- Number of flutes, in helical state hand of helix
- Blind or through hole, depth and bore size
- Type and hardness of material to be tapped
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