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QuadThread Single Point Threading
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QuadThread is an innovative threading system offering maximum indexing accuracy, with support points in the right places. The QuadThread system offers four cutting edges, reducing production costs. The cassette system provides a convenient way to adjust the insert to match the helix angle of the thread being cut, giving maximum efficiency.
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QuadThread is an innovative type of threading tool. Instead of the traditional horizontal triangular insert, we have set the insert upright and made it square. The benefits are obvious:
- The insert is much stronger.
- The insert mounting can be made much more stable.
- The insert has four cutting edges instead of three.
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QuadThread offers maximum indexing accuracy, with support points in the right places.
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The QuadThread system has very high indexing accuracy. This is principally due to a combination of:
- The insert being precision ground all around, including the locating surfaces.
- Large machined surfaces in the insert seat absorb and distribute the cutting forces in an optimized way.
- The insert is locked in position by means of a large, sturdy center screw.
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Strong and stable
The tool stability demands in threading are stricter than those in virtually any other machining operation. A very high axial load is applied at the instant when the insert enters the workpiece. But if a perfect thread is to be produced, the insert must remain immobile in its seat.
With the QuadThread, you are assured that the insert will be firmly secured in position. The center screw - which is located a little off center - draws the insert into the seat and also presses it onto the large rear support surface to ensure that the cutting forces will be securely absorbed.
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The slender toolholders for breadth of range
The threading operation must often be carried out in confined spaces, such as at workpiece shoulders or close to the chuck bar automatics. In these situations, you can use the "blade toolholder".
In view of the fact that QuadThread insert is mounted upright, we can make the toolholder no more than 6mm wide - with unimpaired stability. This is invaluable in confined spaces.
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The cassette system - economical and convenient
Another economical and convenient refinement of the QuadThread toolholders is the cassette system (from .625 x .625 upwards). You can use the same basic toolholder from 8 pitch to 72 pitch. Only the cassette will then need to be changed for different pitches.
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Helix angles
The seat gives the insert a helix angle of 1.5° as standard. Almost all the threads we produce (90%) have a helix angle of between 0.5° and 2.0°, for which the standard angle can be used. But if you need other angles, we can accommodate those too.
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Same insert for right-hand and left-hand threads
A further economic and practical benefit of the QuadThread inserts is that they can be used, in most cases, for both the right-hand and left-hand threading.
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External Threading
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View QuadThread External catalog
Partial Profile
Partial profile 60°
Partial profile 55°
Full Profile
ISO Metric (M)
MJ
ISO Unified (UN)
UNJ
Whitworth (BSW, BSP)
BSPT
Pansarrohrgewinde (PG)
Trapezoidal DIN 103
Round DIN 405
Module
ACME
STUB ACME
NPSM
NPT
NPTF Dryseal
API RD
API
Holders and Cassettes
Internal Holder
External Holder
Cassettes
Spare Parts
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