Metric change gear setsuitable for EDM 300 DS / DR6 change gears: Z60, Z50, Z40, Z40, Z35, Z30For gradients: 0.4 - 0.5 - 0.6 - 0.7 - 0.75 - 0.8 - 1.0 - 1.25 - 1.5 - 1.75 - 2.0 mmShipping weight: 0.30 kgItem weight: 0.06 kg