Goodhd 7Pcs ER11 Spring Collet Chuck Set For CNC Milling Lathe Tool Engraving Machine

7Pcs ER11 Spring Collet Chuck Set For CNC Milling Lathe Tool Engraving Machine Features: brand new and high quality Made of high-quality materials durable Made of high-grade special spring steel Hardening and precision grinding The built-in automatic publishing design and tools will never get stuck on the stand Widely used in boring milling drilling tapping engraving CNC and other processing Use with any standard ER collet chuck for tool applications with straight coolant. Product parameters: Model: ER11 Quantity: 7 Material: high-grade 45 carbon steel Total height: about 18 mm Outer diameter (maximum): about 11.5 mm Clamping range: 1MM to 7MM (1mm 2mm 3mm 4mm 5mm 6mm 7mm) Suitable for metric tool holder sizes: for example 1mm collet fits 1mm metric tool holder 2mm collet fits 2mm metric tool holder Package Included: 7 *ER11 collet Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.