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Minuteman Logo duMONT Minute Man® Broaches
are available from MARYLAND METRICS

Special Broaches -- Push & Pull Types
Special Bushings


Capabilities
TiN, TiCN or TiAlN coatings available.
  Special Broach Quote    What we need to know  Other Broach Styles   

The duMONT Company, LLC is a leading specialist in the design and manufacture of Broaches for
industrial applications. Along with the extensive assortment of stock Broaches listed on these pages, we
offer rapid delivery of special Broaches custom-designed for your application or manufactured from your
blueprints.

We are fully equipped to manufacture both standard and special Broaches in either push or pull styles,
including all types of spline, keyway, internal hole, and surface broaches. Special features, such as
chamfering or deburring for one-pass operation are readily available. All duMONT special broaches are
manufactured of the highest quality high-speed steel.

duMONT's engineering staff has years of experience designing special broaches to replace
time-consuming and costly machining operations. Whenever possible we will meet your special broach
requirements by modifying an existing stock broach, thereby reducing both the cost and delivery time
ordinarily associated with ordering specials. With our extensive stock and expertise in designing and
manufacturing specials, we are able to serve our customers as a single complete source for all of their
broaching needs.







Keyway Broaches
Push or pull-type keyways in both inch and metric sizes, with deburring feature available for smooth
one-pass operation. Production type, cut and finish, double keyway, and keyseating broaches are also
available, fabricated to your exact specification.






Surface Broaches
Surface broaches available as either individual broaches or as inserts for broaching flat surfaces,
irregular shapes, external forms, concave or convex surfaces, serrations, cam shaped, corner squaring,
and dovetails.






Internal Hole Broaches
Square, hexagon, round, D-hole, Double-D, oval, rectangular, inverted keyway, and irregular shape
broaches are all readily available from duMONT, as are burnishing, sizing, and combination broaches.
These internal hole broaches are fabricated to precision tolerances in either push or pull-type designs.






Spline Broaches
A full range of spline broaches specifically designed and manufactured for your application. duMONT
offers straight sided, involute spline, and serration broaches in both push or pull-type designs.

Sharpening Services



Custom bushings for production runs: Special bushing can be designed for multiple-use applications for time and space savings during production runs.





Let Us Meet Your Special Broach Requirements
What We Need To Know
A fully dimensioned drawing of the finished part, casting, forging, or broach would be most helpful.
When a blueprint is unavailable, the following information should be provided:

         1. Description of Cut (Size/Shape/Tolerance)
         2. Length of Cut
         3. Type of Material to be Broached
         4. Size and Shape of Hole or Surface to be Broached
             (For cast holes, give minimum hole size, including draft and fillet radii, if any)
         5. For Keyway Broaches Give:
             a. Minimum Bore Size
             b. Depth of Keyway Across Bore
             c. Width of Keyway
             d. Tolerance
         6. Type of Broaching Machine (Push or Pull/Tonnage/Ram Travel/Daylight Opening)
         7. Number of Pieces to be Broached


  Special Broach Quote   
Please contact factory for details.


Phones: (800) 638-1830 or (410) 358-3130 are available Monday-Friday 8:30 AM to 5:30 PM Eastern time.
Faxes: (800) 872-9329 or (410) 358-3142 & E-mail are available anytime.
Warehouse & showroom hours are Monday-Friday 10 AM to 5:30 PM.
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