Color as shown Size: 1.15 x 1.15 x 1.8 cm Weight: 120 grams These chuck tongs are made of Stainless steel. high-quality 65Mn spring for use on CNC milling machines and engraving machines. A total of 15 collets in various sizes are available on site, which can basically cover your needs. Your needs. Each clamp is packed in separate protective packaging; with a label so you can easily distinguish them. Before inserting the collet into the collet, the collet must be inserted into the nut of the collet. Features: Made of 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 inserted into the collet nut. Each clamp is packed in individual protective packaging with label. For CNC Milling Machine Turning Tools and Workholder Engraving Machines. Specifications: Material: Steel Spring 65Mn Model: ER11 Range: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5, 5 mm, 6 mm,