Wobble Broach

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Wobble Broaching, also known as Rotary Broaching, is unlike the conventional broaching method. The conventional method

has a sequence of polygon forms that increase in size and are pushed through a hole until the desired form size is

achieved. Wobble Broaching can achieve this in one pass by cutting the full form, one corner at a time, without the need

for a secondary operation. This works exceptionally well on Horizontal or Vertical Spindle Machines such as Lathes, Mills,

Wobble Broaching is a precision method for producing internal polygon forms at an extremely fast rate. The entire

operation can be completed within seconds and can produce forms to 0.0005" accuracy or better. This advanced engineering

has caused Wobble Broaching to become increasingly popular; especially in the medical, automotive, aerospace and plumbing

There are only two necessary components that achieve the Wobble Broaching process: 1) A Wobble Broach Tool Holder 2)

Wobble Broach. The principle that makes this process work is the 1 angle of the cutting tool to the centerline of the

work piece. This causes the Wobble Broach to shear into the work piece, with a chisel or scalloping effect, as the broach

is fed into the part to the depth required. The Wobble Broach Tool Holder has a live spindle that holds the broaching

tool, allowing the spindle to spin freely within the Tool Holder. It is then driven by contact with the rotating work

piece. Our Wobble Broach Tool Holders are adjustment-free so there is minimal setup required and include such features as

sealed bearings which require no routine maintenance and a pressure relief hole that allows air and fluid to freely

With Wobble Broaching it is possible to broach such forms as:

Hexagon Square Torx Serration Keyways Double Square Double D Double Hex Involute Spline Spur

Gear J500 And Other Polygon Forms

The two most common forms are hexagons and squares. Standard broach tools are made from M-2 High Speed Steel, but may

also be produced from harder material such as PM T-15 or PM M-4 HSS. Coatings such as Titanium Nitride, Titanium Carbo-

Nitride or Titanium Aluminum-Nitride can be added to produce additional strength, longevity and durability.

These forms can be broached in aluminum, brass, steel, titanium, plastic and other materials at a depth of up to 2 times

the diameter of the broach.
Wobble Broaching is the most superior method used to get a polygon form into the end of a part without the need for a

secondary operation.
Click here to learn more about the Wobble Broach Process or

here to purchase Wobble Broach Tools

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We Design, Manufacture & Distribute precision Rotary Broach and Wobble Broach Tools and Tool Holder.

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