Features 5mm/6mm Floating Design for Tap protecting: The front 5mm and rear 6mm float compensates for misalignment during CNC tapping, reducing tap breakage risks in hard materials like stainless steel. This aligns with industry practices where floating tools minimize thread damage and improve finish quality. 20CrMnTi Steel with Precision Heat Treatment: Constructed from quenched 20CrMnTi steel (HRC48-55), this holder undergoes full carburization and grinding to achieve Universal ER32 Compatibility for M2-M30 Taps: Compatible with ER32 collet chucks and all machine taps (M2-M30), this tool supports diverse threading tasks, from micro-precision M2 screws to industrial M30 bolts. Its telescopic design adapts to varying workpiece depths, ideal for automotive or aerospace components. Stable Structure with Extended Lifespan: The straight shank and round handle ensure vibration- operating, even at maximum float ranges. Rigorous heat treatment and appearance grinding enhance durability, maintaining stability over 10,000+ cycles in harsh workshop environments. Plug-and-Play Installation for Efficiency: Works with ordinary chucks (no specializing adapters needed), allowing quick integration into CNC lathes or milling machines. The ER32 interface aligns with ISO standards, simplifying tool changes and reducing setup downtime. Specification: Item Type: Collet Chuck holder Material: 20CrMrTi steel Purpose: CNC lathe tapping Hardness: HRC48-55 appearance: >0.08mm Adapter Chuck: ER32 Applicable Taps: M2-M30 Front Float: Approx. 5mm / 0.2in Rear Float: Approx. 6mm / 0.24in PackageList: 1 x Collet Chuck holder Note: This product is made of metal, please do not place the product in an environment that is too corrosive, humid and high temperature! Package List 1 x Collet Chuck holder