Electrical Discharge Machining Consumables

MWI supplies the finest EDM wire, supplies and accessories available in the marketplace. We offer a full line of products to service both Sinker and Wire EDM machines, all of which, are available for immediate shipping.


EDM Wire

EDM WireMWI, Inc. now carries the full line of Bedra EDM wire to help you increase your productivity and reduce costs. To find the manufacturer’s compatibilities or to find the right EDM wire for you, click here. Want to easily compare your current EDM wire with our products, click here.


EDM Metallics

We offer a full complement of metallic electrode materials and sizes. We carry a full range of brass, copper, tungsten, tungsten carbide, copper tungsten, and TELCO (tellurium copper).

EDM Metallics Blue HexagonProducts
– Precision Copper Tubing
– Multi-Channel Tubing
– Precision Brass Tubing
– Silver Tungsten ST-20
– Precision Brass Rods
– Multi-Channel Tubing
– Precision Copper Rods
– Copper Centerless Drills


Telco Electrode

TELCO electrodesRecommended Usage: Telco is a machinable copper for electrical discharge machining. As an electrode material, Telco performs the same as regular copper. However, Telco offers the distinct advantage of being 90% machinable as compared to regular copper. To view the Telco advantages chart, click here.


Copper Tungsten “CT-3″

Recommended Usage: Copper Tungsten CT-3 is a sintered and infiltrated electrode material which combines the strength, high density, and high melting point of Tungsten with the excellent electrical properties and good resistance against DC arcing of copper to form an unbeatable combination.

Typical Average Properties

1) Density 14.0 gms/cc
2) Rockwell Hardness 90 B
3) Electrical Conductivity 48% I.A.C.S.”
4) Copper Content 25-30%
5) Tungsten Content 70-75%

*Special Note: CT-3 thin sheets from .001 thick through .055 have a 40% Copper/60% Tungsten content


TC-9 Tungsten Carbide Tubing and Rod

TC-9 Tungsten Carbide electrodes are recommended as an alternative to brass, copper, or copper tungsten for machining holes. The extreme high density, strength, good conductivity, and high melting point of TC-9 make it an excellent choice for processing production holes where electrode wear is a factor. MWI offers a wide range of sizes starting at .005.


Pure Tungsten Wire TU-4

Tungsten wire (TU-4) is recommended for small diameter holes less than .100 deep. Due to its strength, high density, and high melting point, TU-4 electrodes are more resistant to electrode wear than any other electrode material. MWI offers a wide range of sizes starting at .002.


EDM Accessories

MWI supplies the finest consumables available on the market. We offer a full line of products to service all parts of the industry.

EDM Metallics Blue Hexagon
– Tapping Electrodes
– Dielectric Fluid
– Filters
– Resins
– Corrosion Inhibitor
– Westhoff Drills


Black Diamond CVD End Mills

New Shreblack diamond end millsdder Roughing End Mill

MWI introduces the new Black Diamond Shredder roughing end mill for all your heavy-duty graphite machining. These end mills are designed to remove large amounts of material quickly and more efficiently than standard end mills. To learn about the benefits and the pricing, click here!