Specification Brand : LiebeWH BulletPoint1 : WEAR RESISTANCE: Using 20CrMnTi steel material, quenched and hardened, possess high surface hardness and strong wear resistance BulletPoint2 : HIGH CONCENTRICITY: The inside and outside of the tool holder are integrally formed. Fine control processing bring more stable performance and high concentricity BulletPoint3 : ACCURATE MACHINING: After inner hole ground treatment, suitable for high accuracy machine tool processing and has a longer life than ordinary tool holders BulletPoint4 : STRONG RESISTANCE: Using carburizing and quenching process, the hardness is higher, the fatigue resistance of the interface is stronger and more BulletPoint5 : 1-7MM CLAMPING RANGE: The clamping range from 1-7mm, and the accuracy is equal or less than 0.005mm, very trustworthy. 10000rpm speed can realize fast operation ItemName : ER11 CNC Tool Holder Collet CNC Machining Tool Holder Chuck Holder Extension Rod 0.005mm Accuracy CNC Milling Lathe Parts Center Milling Arbor with Wrench ItemPackageDimensions_Height : 8 centimeters ItemPackageDimensions_Length : 18 centimeters ItemPackageDimensions_Width : 9 centimeters ItemTypeKeyword : spring-clamps Manufacturer : LiebeWH ModelName : LiebeWHmst78b49nh ModelNumber : LiebeWHmst78b49nh PartNumber : LiebeWHmst78b49nh ProductDescription : 1. STRONG WEAR RESISTANCE: Using 20CrMnTi steel material, quenched and hardened, possess high surface hardness and strong wear resistance 2. HIGH CONCENTRICITY: The inside and outside of the tool holder are integrally formed. Fine control processing bring more stable performance and high concentricity 3. INNER HOLE GROUND TREATMENT: After inner hole ground treatment, suitable for high accuracy machine tool processing and has a longer life than ordinary tool holders 4. STRONGER FATIGUE RESISTANCE: Using carburizing and quenching process, the hardness is higher, the fatigue resistance of the interface is stronger and more 5. 1-7MM CLAMPING RANGE: The clamping range from 1-7mm, and the accuracy is equal or less than 0.005mm, very trustworthy. 10000rpm speed can realize fast operation