Wheeler Tool Company!


Second Generation - Ruggedized Design

***Click Here for Machining Demo Movie of PBA-RMA II***


Sample Machined Parts

Polygon Box-Rotary Milling Attachment (RMA II) Model for Automatic Screw Machine Centers (Rotary Milling of Polygons with Parallel Flats) on free machining material.

Patented designed Unit equipped for your specific applications.

Make your Automatic Screw Machine into a Machining Center.

The Polygon Box-Rotary Milling Attachment (RMA) Model was upgraded to the PBA-RMA II in 2000. The Second Generation Model features a new ruggedized design. The Helical Gears are now MIG welded to the heat treated ground shafts eliminating potential breakage at the key ways. Field replaceable sub-assemblies are now available.


Typical Application

Typical Machining Center


1/4"-1 5/8" Across Flats

Euroturn, Acme, New Britain, Wickman, etc.
Multiple Spindle Screw Machines


Any Polygon with Parallel flats


Utilizes existing Automatic Machining Centers
Ideal for high speed/high production applications
Eliminates Costly Secondary Operations
Mounts on the Main Tool Slide or Cross-Slide of your Machine
Polygon Attachment is driven by a Synchronous Drive Assembly (provided by customer)
Simply replace the Tool Cutter Head for size and Polygon Configuration changes.


PBA-RMA II Unit to meet your specific Application
Adapter Plate for either the Main Tool Slide or Cross-Slide of your Machine
Tool Holders to suit the application and Tool Inserts
Sample Parts machined from your material (2) Flats, Elliptical, Rectangular, Pentagon
Please fill out the Polygon Job Specification/Data Sheet when requesting additional information!



Wheeler Tool Company has been working for forty years on the unconventional tools used to eliminate costly secondary operations.

The Polygon Box-Rotary Milling Attachment (RMA) Upgraded Model PBA-RMA II incorporates the following product improvements: Replaced all heat treated ground shafts and Helical Gears, Seals, etc. The Gears are now MIG welded to the shafts (eliminating key ways). These are now available as a sub-assembly and a list of parts Wheeler Tool Company recommends you stock in house for field replacement are now available.

PBA-RMA II Installed on Euroturn 6/32

The PBA-RMA II Model was designed to machine any Polygon with Parallel Flats for applications requiring very high speeds with your existing Automatic Screw Machining Centers.

The Unit can be mounted on either the Main Tool Slide or the Cross-Slide providing greater flexibility for your application.

Synchronous Drive is to be supplied by the customer. Wheeler Tool will provide assistance in the procurement if necessary.

Most contouring operations performed at usual speeds of Automatic operations.

Turn/Form Irregular Shapes

***Click Here for Machining Demo Movie of PBA-RMA II***

About Our Company Product Catalog Contacts Job Specification /Data Sheet Main Page

Wheeler Tool Company wtc@wheelertool.com 215 Wheelock Ave. Athens, PA 18810 USA Phone & Fax 570.888.2275