Whether you are an aerospace, medical device, or defense manufacturer, a research laboratory, or a precision job shop, we have the capabilities to fulfill your needs. Our EDM consumables, including electrodes and electrode guides are fully customizable, and all supplies are made to your specifications. Supplies are stocked in anticipation of demand, ensuring that you aren’t left waiting for parts you need now.

Why Holepop?

  • Consultation with EDM experts
  • Low minimum order quantities and sample packs allow for experimentation
  • Capacity for high volume orders with consistent quality
  • Dynamic stocking system anticipates demand and reduces lead times
  • Brass, copper, copper-tungsten and tungsten carbide electrodes
  • Wide range of electrode sizes with small steps in between sizes
  • Guides with silicon nitride or conventional ceramic guiding surfaces
  • Extensive customization of guides and electrodes
  • Drill chucks and dielectric fluid
  • Quality assurance process to ANSI inspection levels with NIST certified metrological instruments
  • Flow testing of electrodes

Holepop EDM Supplies & Electrodes is an EDM (Electrical Discharge Machining) supply company, providing a variety of electrodes and guides. For more than 15 years companies in aerospace, biomedical technology, tools and dies, and defense have used our electrodes and guides to create their cutting-edge products.

Given the choice between us and our competitors, many companies have chosen us as their EDM supplier because we are a supply chain management company, not an ordinary parts distributor. We deal with all of the headaches of the parts procurement process, so that you can devote your financial and human resources to other things.

Our value-added processes include design, execution, control, and monitoring. If you have a machining objective, but no concrete specifications for the electrodes or guides that you need, or if you have to work with EDM drill settings that cannot be deviated from, this is where our design team comes in. Working in close cooperation with your engineers, machinists, procurement staff, and production manager, we make sure that your parts are just what you need to get the job done. If you have a very predictable production schedule, our stocking system ensures that we have your parts stocked ahead of time, in anticipation of demand. This minimizes lead times and the need to plan your production schedule around us. If you have a very high and uncompromising standard of quality, our quality assurance system ensures that no product leaves our facility that does not meet your standards. We inspect all dimensions of our electrodes with metrological instruments whose accuracy reaches up to the fifth decimal place.

With brass, copper, copper-tungsten, and tungsten carbide electrodes, guides with conventional ceramic, ruby, or silicon nitride guiding surface cores, drill chucks, and dielectric fluid, we carry all of the essential consumables needed for small hole EDM. All of our products are customizable, and we make sure that you find the parts perfectly suited to the application at hand.

EDM Electrodes & Guides

Electrical discharge machining uses the spark between two electrically conductive materials to cut into the target material. This may be achieved using a few different methods: wire and sinker EDM, and EDM small hole drilling. We specialize in EDM small hole drilling, or hole-popping for short. Hole-popping—like sinker and wire EDM—is a unique machining method using dedicated drilling machines and equipment. Equipment is as varied as the applications of hole-popping, including an array of electrodes and guides.

Turbine blade with cooling holes drilled by EDM.

We offer all types of electrodes—rods, single hole, and multi-channel tubes—in brass, copper, tungsten carbide, and copper-tungsten. Brass and copper are the most common EDM consumable materials because they work on most metal types. Brass is best used for tool and stainless steel, titanium, carbon, invar, aluminums and work-hardened materials that have been heat treated so they cannot easily be machined. Copper is used best on exotic types of metals such as tungsten and carbide, as these metals are extremely hard and cannot be machined or drilled through using conventional type drilling. Tungsten carbide is a relatively exotic material with great rigidity and toughness, giving it two advantages over brass or copper—greater penetrative power and smaller potential diameter. Copper-tungsten combines the strengths of copper and tungsten, and is more effective than copper or tungsten where their applications overlap.

In addition to a variety of materials, we offer multiple electrode types, including rods, single hole, and multi-channel tubes. Multi-channel tubes can be web type, with two or three channels. Channels act as conduits for dielectric fluid, using the fluid as a coolant and as a medium to flush disintegrated workpiece material. A cool electrode stays rigid, while a hole with little debris improves drilling precision. Our quality assurance process guarantees our products against any defects and ensures that electrodes and guides are within specified tolerances. Electrodes are manufactured using an extrusion process strictly in accordance with ISO 9001 guidelines.

Our precision electrode guides are manufactured with conventional ceramic and silicon nitride guiding surface cores. Conventional ceramic guides comes in standard sizes and are cheap, making them ideal for those with smaller budgets or small production runs. However, they are not necessarily more cost-effective than silicon nitride guides. Guides made of this material can last on the order of 5 to 10 times longer than their conventional ceramic equivalents, and are much more cost-effective when production runs are very large. Silicon nitride guides are also not restricted to standard sizes, and great customization is possible.

Please visit our quality control page for further details. If you have questions regarding our EDM electrodes or a small hole drilling application, or would like to get an immediate price quote or to place an expedited order please visit our contact page or call us directly at +1 (714) 222-9899.

Lowest Cost on High Quality Brass & Copper EDM Tubing.

Receive a hassle-free quote! Call us today! +1 (714) 222 9899