EDM Mold Services: Wire, Hole Pop & Sinker.Evansville, Indiana

Some detail is too fine or too deep for a cutter to reach. It gets burned into hardened steel with electrical sparks instead. The burns run overnight, while the building is empty.

Can we cut the detail your part needs?

Wire EDM

3 Charmilles machines

Sinker EDM

6 Charmilles machines

Unattended running

Robot-fed, 24/7

Quality system

ISO 9001:2015

  • I know the detail I need burned

    Send the model or the print and get a price for your job.

    Start a quote →
  • I need to know if you can cut it

    The wire machines, the sinker bank and what the robot runs unattended.

    See what fits →
  • I have a broken drill or tap in a block

    Send the block and we will get it out.

    Start anyway →

Why us

Why burn it here?

Sparks instead of cutting pressure

Sparks remove steel without pushing on it. That is how hardened blocks get detail a cutter cannot reach.

Wire, sinker and CNC hole pop

A robot keeps three machines cutting overnight

A robot with tool changers runs the sinker department around the clock, with nobody in the building. Hours nobody staffs cost less, and that shows in your quote.

Erowa Linear robot, 3 machines, 24/7

Electrodes never hold the queue up

Three automated graphite mills cut the electrodes that feed the EDM bank, so electrode work never queues behind machining work.

3 automated Mikron graphite mills

What fits

Detail a cutter cannot reach.

What gets burned here instead of machined.

  • Ribs and sharp corners
  • Complex contours
  • Interchangeable inserts
  • Broken drills and taps
  • Accurate holes in hardened steel
  • Fine detail that must not move

Not sure whether your detail needs wire, a sinker or a hole popper? Describe the feature and we will tell you which, and why.

Wire, Hole Pop & Sinker EDM

What to expect

What you get before your work leaves.

  1. Detail no cutter could reach

    Ribs, sharp corners and fine features are burned into hardened steel instead of being machined around.

  2. Broken tooling comes out

    CNC hole popping puts accurate holes through hardened steel and pulls broken drills and taps.

  3. Nothing pushes your part out of position

    The electrode never touches the work, so no cutting force can move a thin rib while it is cut.

  4. The detail is verified

    Burned detail is checked on a coordinate measuring machine before it moves to the next operation.

Start a quote →
The Erowa robot rail beside an AgieCharmilles Form P600 sinker EDM at Dexterous, a pallet loaded on the machine table
The Erowa Linear robot on its rail at Dexterous, with racks of electrodes and pallets beside it
A graphite electrode on an Erowa chuck being cut on an automated Mikron graphite mill at Dexterous

Tell us what you need.

Who does it

The shop behind the work.

Dexterous has built molds in Evansville since 1979, and the second generation of the family runs it now. A tool built here comes back here for a repair, to the people who cut it.

Building molds since1979
Shop floor22,500 sq ft
CertifiedISO 9001:2015
New to this? What is EDM, and why does it run all night here?

It removes steel with controlled sparks instead of cutting pressure. That is how hardened blocks get ribs, corners and detail a milling cutter cannot reach. The process is slow and steady, which makes it ideal for automation. A robot loads electrodes and pallets around the clock. Burns that would tie up a machinist all day happen overnight instead. The electrode never touches the steel, so nothing pushes a thin rib out of position. The work also runs unattended: a robot feeds three of these machines around the clock.

Before you order

What buyers ask before sending EDM work.

Why use EDM instead of milling?

Hardened steel, sharp internal corners, deep ribs and fine details that a rotating cutter physically cannot produce. EDM burns them with sparks, holding tight tolerances in steel that has already been heat treated.

What does lights-out machining mean for my price?

Our robot-fed EDM cell runs unattended around the clock. Unattended machine hours cost less than attended ones, and those savings are built into how we quote EDM-heavy work.

Can you remove a broken drill or tap?

Yes. The hole poppers make quick work of broken drills and taps embedded in steel, without damaging the surrounding part.

Send the part, the print or the problem.

Have CAD files?

Send the form. We will ask for them next.

Goes to the people who quote the work, not a sales queue. Ask for an NDA and you get one.

Rather talk it through?

(812) 422-8046

Related: Mold Repair · Laser Welding · 5-Axis Machining

(812) 422-8046Request a quote