Description:MODEL: ER16CONDITION: Brand NewMATERIAL: High Grade 1065 Carbon Steel Run-Out Tolerance: 0.015MM (0.0006")Gripping Range: 1mm to 10mmPackage included:10 pcs(1mm，2mm，3mm，4mm，5mm，6mm，7mm，8mm，9mm，10mm) ER16 Collets