Current EDM RT/CT Series Electrode Guides

Our guides can be manufactured to fit all Current EDM small hole drilling machines, including the Current EDM CT Series and Current EDM RT Series, some of the most popular in machining. These are available with conventional ceramic or silicon nitride guiding surfaces. Exclusive to Holepop, our silicon nitride guides combine the endurance and quality of the state-of-the-art ceramic with the performance of your RT or CT Series machine.

Diagram of a Current EDM RT Series electrode guide.
Four current RT/CT series EDM guides with short overall lengths.
Current RT/CT series EDM guide with a short hypodermic extension.

Ordering Custom EDM Guides

If a guide in the desired size cannot be found in the parts list below, do not hesitate to contact us. Custom guides can be built to your specifications. Please visit our guide customization page for more information. Guide specifications can be found here.

Product Code and Description

Please note that the following parts list is not representative of our entire guide selection. This list is meant to be used as much for reference as for actual purchasing, and represents a range, rather than a comprehensive list, of the products we offer. If the dimensions of a desired guide are not found on this list, but lie between listed dimensions, we are capable of manufacturing it.

Inner Diameter

0.10mm / .004″

0.11mm / .004″

0.12mm / .005″

0.13mm / .005″


0.14mm / .006″

0.15mm / .006″

0.16mm / .006″

0.17mm / .007″


0.18mm / .007″

0.19mm / .007″

0.20mm / .008″

0.21mm / .008″


0.22mm / .009″

0.23mm / .009″

0.24mm / .009″

0.25mm / .010″


0.26mm / .010″

0.27mm / .011″

0.28mm / .011″

0.29mm / .011″


0.30mm / .012″

0.31mm / .012″

0.32mm / .013″

0.33mm / .013″


0.34mm / .013″

0.35mm / .014″

0.36mm / .014″

0.37mm / .015″


0.38mm / .015″

0.39mm / .015″

0.40mm / .016″

0.41mm / .016″


0.42mm / .017″

0.43mm / .017″

0.44mm / .017″

0.45mm / .018″


0.46mm / .018″

0.47mm / .019″

0.48mm / .019″

0.49mm / .019″


0.50mm / .020″

0.51mm / .020″

0.52mm / .020″

0.53mm / .021″


0.54mm / .021″

0.55mm / .022″

0.56mm / .022″

0.57mm / .022″


0.58mm / .023″

0.59mm / .023″

0.60mm / .024″

0.61mm / .024″


0.62mm / .024″

0.63mm / .025″

0.64mm / .025″

0.65mm / .026″


0.66mm / .026″

0.67mm / .026″

0.68mm / .027″

0.69mm / .027″


0.70mm / .028″

0.71mm / .028″

0.72mm / .028″

0.73mm / .029″


0.74mm / .029″

0.75mm / .030″

0.76mm / .030″

0.77mm / .030″


0.78mm / .031″

0.79mm / .031″

0.80mm / .031″

0.81mm / .032″


0.82mm / .032″

0.83mm / .033″

0.84mm / .033″

0.85mm / .033″


0.86mm / .034″

0.87mm / .034″

0.88mm / .035″

0.89mm / .035″


0.90mm / .035″

0.91mm / .036″

0.92mm / .036″

0.93mm / .037″


0.94mm / .037″

0.95mm / .037″

0.96mm / .038″

0.97mm / .038″


0.98mm / .039″

0.99mm / .039″

1.00mm / .039″

1.01mm / .040″


1.02mm / .040″

1.03mm / .041″

1.04mm / .041″

1.05mm / .041″


1.06mm / .042″

1.07mm / .042″

1.08mm / .043″

1.09mm / .043″


1.10mm / .043″

1.11mm / .044″

1.12mm / .044″

1.13mm / .044″


1.14mm / .045″

1.15mm / .045″

1.16mm / .046″

1.17mm / .046″


1.18mm / .046″

1.19mm / .047″

1.20mm / .047″

1.21mm / .048″


1.22mm / .048″

1.23mm / .048″

1.24mm / .049″

1.25mm / .049″


1.26mm / .050″

1.27mm / .050″

1.28mm / .050″

1.29mm / .051″


1.30mm / .051″

1.31mm / .052″

1.32mm / .052″

1.33mm / .052″


1.34mm / .053″

1.35mm / .053″

1.36mm / .054″

1.37mm / .054″


1.38mm / .054″

1.39mm / .055″

1.40mm / .055″

1.41mm / .056″


1.42mm / .056″

1.43mm / .056″

1.44mm / .057″

1.45mm / .057″


1.46mm / .057″

1.47mm / .058″

1.48mm / .058″

1.49mm / .059″


1.50mm / .059″

1.51mm / .059″

1.52mm / .060″

1.53mm / .060″


1.54mm / .061″

1.55mm / .061″

1.56mm / .061″

1.57mm / .062″


1.58mm / .062″

1.59mm / .063″

1.60mm / .063″

1.61mm / .063″


1.62mm / .064″

1.63mm / .064″

1.64mm / .065″

1.65mm / .065″


1.66mm / .065″

1.67mm / .066″

1.68mm / .066″

1.69mm / .067″


1.70mm / .067″

1.71mm / .067″

1.72mm / .068″

1.73mm / .068″


1.74mm / .069″

1.75mm / .069″

1.76mm / .069″

1.77mm / .070″


1.78mm / .070″

1.79mm / .070″

1.80mm / .071″

1.81mm / .071″


1.82mm / .072″

1.83mm / .072″

1.84mm / .072″

1.85mm / .073″


1.86mm / .073″

1.87mm / .074″

1.88mm / .074″

1.89mm / .074″


1.90mm / .075″

1.91mm / .075″

1.92mm / .076″

1.93mm / .076″


1.94mm / .076″

1.95mm / .077″

1.96mm / .077″

1.97mm / .078″


1.98mm / .078″

1.99mm / .078″

2.00mm / .079″

2.10mm / .083″


2.20mm / .087″

2.30mm / .091″

2.40mm / .094″

2.50mm / .098″


2.60mm / .102″

2.70mm / .106″

2.80mm / .110″

2.90mm / .114″


3.00mm / .118″