Specification Brand : YedaHcy BulletPoint1 : Complete Set: Includes 19 pcs of ER32 collets ranging from 2mm to 20mm, meeting various needs for milling, engraving, and tapping tasks. BulletPoint2 : accurate: Made of -grade 1065 carbon steel, ensuring durability and low runout tolerance of just 0.015mm for accurate results. BulletPoint3 : Automatic Release: Features a built-in automatic release that prevents tools from getting stuck, ensuring smoothness and efficient operation. BulletPoint4 : Versatile Application: Ideal for use with CNC milling and engraving machines, providing a wide range of clamping options for different . BulletPoint5 : Identification: Each collet is clearly marked for identification, saving time and effort during tool changes. IncludedComponents : 1/2-Inch Collet ItemName : 19Pcs ER32 Collet Chuck Set 2 20mm, Milling Chuck for CNC Machines, Engraving Tapping Tools, accurate Low Runout, Automatic Release ItemPackageDimensions_Height : 6 centimeters ItemPackageDimensions_Length : 20 centimeters ItemPackageDimensions_Width : 16 centimeters ItemTypeKeyword : workholding-collets Manufacturer : YedaHcy ModelName : YedaHcyt3i17c5q4g ModelNumber : YedaHcyt3i17c5q4g PartNumber : YedaHcyt3i17c5q4g PowerSourceType : ac/dc ProductDescription : Feature: 1.The model is ER23 and has 19 chucks in the kit with a clamping range of 2mm-20mm. 2. Material is high grade 1065 carbon steel which is durable. 3. Position tolerance is just 0.015mm. (0.0006 ) 4. Including 19 pcs of ER32 collet that fits for the users'needs. 5. Engraving Machine Tapping Tools is suitable for.