AA EDM Corp. Special MF 4 4-Axis Sinker Type EDM #7324 #1 Used microhole production EDM by AA Edm. Contact AA to see if this can be adapted to your application. Believe this was being used for manufacturing diesel fuel injectors. Here is a paragraph from the AA website: "EDM Machines built for: Micro holes for Fuel Injectors Perfect Geometry Hole within 5 Microns Diesel and High-Pressure Gasoline Orifice, Lift and Damper Plates Aerospace EDM Blades and Vanes Nozzle Guide Segments Combustion Liners Medical and Textile Hydraulic & Pneumatic Valve Spools" Believe these specifications to be close to what we have, please verify. SPECIFICATIONS: X Axis Travel: 4" [100mm] Y Axis Travel: 4" [100mm] Z Axis Travel: 4" [100mm] C Axis Rotary Table: 360° Machine Height: 73.3" [1864mm] Machine Weight: 800 lbs [363Kg] Electrode Diameter: 0.003-0.014 [100-400μm] Electrode Material: Any Dielectric Fluid: Water Power Requirement: 1.5 KVA Power Supply: AAEDM Micro hole Generator