1Floating Tapping: This telescoping tool holder has spring like device for flexible tapping or floating tapping, protecting the tap and preventing it from breaking and damage. 2Applicable Range: This tool holder can be used for automatic machine tool, multi shaft tapping machine, or CNC machining center without synchronous tapping function. 340Cr Alloy Steel: The tap tool holder is made of excellent 40Cr alloy steel, with quenching process, for high concentricity, good wear resistance, and stable performance. 4Good Performance: The shank hole adopts fine grinding process to ensure high centering accuracy and good comprehensive mechanical properties, can be used with confidence. 5Safe Operation: The tool holder adopts integral forming, good structural rigidity, the pressure is distributed on the roller pin of the retainer during use, suitable for large cutting amount processing. Item Type: Tapping Tool Holder Model: BT40-TER25-100L Material: 40Cr Alloy Steel Size: Approx. 165 x 63mm / 6.5 x 2.5in Inner Diameter: Approx. 25mm / 1in 1 x TappingToolHolder 1 x Storage Box