D6.0x400MM Brass Tube Multihole (30PCS/LOT),Brass EDM Tubing Electrode Multi-Channel Diam. 6.0 Length 400 for Electric Discharge - AliExpress

CPWS®-brass electrode tube multi-hole 0.3mm~5mm available,for EDM

CPWS®-brass electrode tube multi-hole 0.3mm~5mm available,for EDM

Brass EDM Electrodes & Drills - EDM Supplies for Small Hole Drilling

Eco Cut Brass EDM Wire 0.10, 0.15, 0.20, 0.25, 0.30mm EDM Brass

EDM Brass Pipe Multi Hole Electrode Tubes for Small Hole Popping

Brass Tube For EDM drilling Pipe Guide Electrode Tubes – TAGUTI

Copper Multi Channel EDM Tubes - EDM Supplies for Small Hole Drilling

Multi-channel EDM electrodes 0,2-3,0mm

Electrode brass tube single hole Ø 0.10 x 200 mm