color as shown_x005F_x000D_Size:1.15 x 1.15 x 1.8cm_x005F_x000D_Weight:120 grams_x005F_x000D_These chucks pliers are made of high carbon steel. high quality 65Mn spring for use on CNC milling machines and engraving machines.There are a total of 15 collets of various sizes on site, which can basically meet your needs. your needs._x005F_x000D_Each clamp is packed in separate protective packaging; with a label so you can easily tell them apart. Before inserting the collet into the collet, the collet must be placed in the nut of the collet._x005F_x000D_Features: Made in stainless steel high quality spring with stable performance. Fine workmanship, good elasticity. and high precision. Before inserting the collet into the collet, it must be placed in the collet nut. Each clamp is packaged in individual protective packaging with a label._x005F_x000D_For CNC milling machine turning tools and workpiece holding engraving machines. Specifications: Material: Steel spring 65Mn Model: ER11 Range: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 1/8"", 1/4"" Height: 18mm/0.7"" Outer Diameter: 10 mm/0.39"" Runout tolerance: ; 0.008mm Weight: approx. 127g_x005F_x000D_Package Contents: 1 set (15 pieces) x collar Note: 1. Please allow 1 to 1 error. 2mm due to manual measurement. Thank you for your understanding. 2. Monitor calibration is inconsistent, color of item shown is incorrect. on the photo may be slightly different from the real object. Please refer to this one.