RobbJack Corporation

3300 Nicolaus Road
Lincoln, CA 95648 US


As Seen In MoldMaking Technology

automotive instrument panel light guide

Technology Tuesday: All about Aluminum
Cruise through this week’s Technology Tuesday slideshow to brush up on your knowledge of aluminum, its benefits, the challenges it poses for moldmaking and strategies for overcoming those challenges.

SLIDESHOW: Technology Tuesday, Technology in Action
This week, instead of a showcase of static product information, I thought I'd share some videos demonstrating technology in action that MMT has covered.

Alliance laser machines

Amerimold 2017: Multitudes of Metalworking Materials and Machines
Amerimold proved once again that it is THE event for moldmaking.

GPI prototype

SLIDESHOW: Technology Showcase, Amerimold Product Showcase (4)
Here at MMT, the excitement is building and we’re putting finishing touches on all things moldmaking so that attendees will get the most out of every aspect.

RobbJack DM/MDM end mills

Carbide End Mills Offer Longer Tool Life, Reduced Wear
RobbJack will highlight its DM/MDM end mills, made from a carbide material and coating combination said to last 450 percent longer than comparable tools designed for hard-metal applications.

Carbide End Mills, DLC Coatings Among Booth Displays
At Plastec West / MD&M West, February 7-9, in Anaheim, California, RobbJack Corp. will showcase the A1-303 series of carbide end mills, while Crystallume is introducing three different diamond-like carbon (DLC) coatings.

Mirror Edge Chatter Reduction
Special cutter geometries exist today that are specifically designed to eliminate chatter, regardless of the application.

cutting tool performance

What’s All the Chatter about Aluminum?
Special cutter geometries can virtually eliminate vibration in machining of aluminum molds.


From Machining and Cutting Tools to Surface Treatment and Repair, Amerimold Exhibitors Aim Impress
With a record number of exhibitors at Amerimold 2016, supplier companies from all aspects of the moldmaking industry brought their A-games. We'd like to show you a few highlights!

RobbJack DM/MDM die/mold series carbide end mills

Carbide End Mills Offer Longer Tool Life, Reduced Wear
RobbJack’s DM/MDM die/mold series carbide end mills feature a carbide material and coating combination designed to last longer than comparable combinations for hard metal applications and to reduce wear.

mold craft amerimold 2016

Slideshow: Amerimold 2016 Preview
This annual tradeshow and technical conference addresses the business development, best practices and networking interests of the plastic injection mold manufacturing industry. Here's a small sampling of what attendees will see this year.

Variable-Helix Tools Deliver Faster Speeds, Feeds
RobbJack/Crystallume will highlight a variety of cutting tools, including its NS Series of variable-helix tools, designed to deliver faster speeds and feeds than traditional steel-cutting tools.

Toroidal tools

Tooling Up for Challenging Cuts
To maximize quality and repeatability, you need the right cutting tools, especially in challenging applications. Here’s a guide for selecting tools for high-speed tool paths, tight areas, straight walls and graphite cutting.

Toroidal Tools for Tight Areas
Toroidal end mill in hardened steel mold machining of helical bores in 54 HRc H13 steel.

Choosing the Right Cutting Tool for Pre-Hard Materials
There are four common tool types to consider for cutting pre-hard materials: ball-end, toroidal, multi-fluted bull-nose and square-end.

High-Speed Hard Metal Trochoidal Machining
High-Speed Hard Metal Trochoidal Machining

Apply Your Moldmaking Know-How to Aerospace Work
If you are looking to diversify the jobs you machine and venture into the aerospace market many of the toolpaths and cutting techniques can be used with some modifications.

Figure 3

Advanced Toolpaths Improve Cutter Performance in Difficult Materials
Trochoidal toolpaths are available on most CAD/CAM systems, yet are rarely used or even known. By using trochoidal toolpaths and hybrid trochoidal toolpaths you can successfully machine exotic materials.

A hardened H-13 block

Market Looks Razor Sharp
Great strides continue to be made in the cutting tool/toolholder market that result in reduced benchtime and additional handwork, as well as heavier depths-of-cut—adding up to increased productivity and higher accuracy.

Product Categories of RobbJack Corporation

Coatings, Platings
Cutting Tools
End Mills