EDM Wire diameter: 0.30mm, 0.25mm, 0.20mm,0.15mm,0.10mm Weight/spool: 3 kg, 3.5kg,5 kg, 7 ... : quality brass wireWire diameter: 0.30mm, 0.25mm, 0.20mm,0.15mm.0.10mmWeight/spool: 3 kg, 5 kg, 7 kg, 15 kg, 20kgTensile strength: 1000 N ... Spool (Standard Weight) HardBSH10030.10±0.001≥980DIN125(3kg,3.5kg)BSH15030.15±0.001≥980BSH20**0.20±0.001≥980DIN125(3kg,3.5kg)P5 ...