EDM polishing stones and Die*Star are the most popular stones
What are EDM stones?
These are specialized abrasive tools used for polishing and finishing the surfaces of metal parts that have been machined using Electrical Discharge Machining (EDM). It is a machining process that involves using a series of electric sparks to erode and shape metal parts into the desired shape.
After the EDM process is completed, the surface of the metal part can be rough and contain small surface irregularities, which can affect the performance and durability of the part. These are designed to remove these surface irregularities and create a smooth, polished finish on the surface of the metal part.
They remove the tough, hard scale left by the Electrical Discharge Machining process, breaks down slowly and maintains shape for a long time.
Excellent results on all hard tool steels. Per Box (12)
Hard / coarse polishing stones ideal for spark erosion removal.
Gesswein equivalent would be: EDM
All stones are 6” long, apart from all 5/32” sq. and 1/8” sq. stones which are 4” long. All sizes and grits listed here are the ones we hold in stock – if you require any other sizes or grits not shown please contact us.
More sizes and grades here
For more information on EDM stones give us a call – we have experts here who have been polishing for years!
And take a look at our You Tube page for videos of us hard at work finishing!