Nikken HSK100A-MDSK25-140 Major Dream Slim Chuck, High-Precision Tool Holder, 140mm Projection

The Nikken HSK100A-MDSK25-140 is a high-precision Major Dream Slim Chuck designed for heavy-duty milling applications. This tool holder features an HSK100A taper shank and utilizes the MDSK25 collet system, offering a projection length of 140 mm. The Major Dream series is specifically engineered to reduce and eliminate in-process vibration through a unique internal construction that includes a pre-loaded split taper cone and disk-type springs, providing built-in dampening and anti-vibration characteristics. This design enhances cutting rigidity and surface finish quality. The system provides a run-out guarantee of 3 microns at four times the diameter when used with recommended A-type collets. The assembly includes a TiN bearing nut to increase gripping torque and performance. It supports high-speed machining and is capable of through-spindle coolant delivery for efficient heat dissipation and chip removal. The 8-degree collet system provides high clamping force and precision compared to standard ER collet chucks. No year of manufacture is available for this specific unit.