Feature:1. Possess high thermal strength and oxygen resistance, finish carburizing heat treatment, internal and external grinding, bring strong wear resistance and longer life2. Thread accuracy and surface are quenched and hardened to improve durability and accuracy, and the collet clamp is more compact3. Internal hole after grinding treatment, suitable for highelaboration machine tool processing, which requires longer life than ordinary tool holders4. Telescopic floating function effectively slows down the force of the tap when it is CCW, increases the life of the tap by more than 85%, and greatly improves the cutting efficiency5. Come with better elasticity, lower wear, higher concentricity, better protection due to too fast feed and retraction of the tapping, breaking of the tap and pressurecontrolled tensile deformation6. Used for tapping of machining center, telescopic floating tool holder, adjustable machine clearance compensation, and special chuck to prevent thread breakageSpecification:Item Type: Tapping HolderMaterial: 20CrMnTiModel: BT40-ETP32-100Product Use: Clamping wire tap (milling machine, CNC machining center)Tapping Range: M2-M30D (outer diameter): Approx. 46mm / 1.8inL2: Approx. 25mm / 1inNut Outer Diameter: Approx. 50mm / 2inNut Height: Approx. 25mm / 1inStandard Speed: Below 2000Adapter Chuck: ERG32Size: Approx. 18mm / 0.7in5mm / 0.2in.Package List:1 x Tapping Holder