Nikken BT50-C20-105 Multi Lock Milling Chuck 2-20mm
These Multi-Lock Milling Chucks offer the ultimate in high-performance toolholding through a unique roller cage clamping mechanism. The chuck body, manufactured from special heat-treated and sub-zero stabilised steel, incorporates a slotted bore that contracts evenly under force. A separate nose ring with internal precision rollers compresses the bore concentrically around the tool shank when tightened, ensuring maximum gripping force with minimal run-out.
This system allows for direct clamping of 20mm diameter shanks, or with the use of reducing collets, a wide range of tool diameters from 2.0mm to 16.0mm. Designed for maximum rigidity and torque, these chucks deliver unbeatable performance in roughing and finishing applications alike. Suitable for use with BT, IT (DIN69871), and HSK spindles, they're an ideal choice for demanding high-speed CNC machining environments.
Features and Benefits
Mechanical roller clamping system provides uniform full-length tool engagement and superior clamping force, minimising slippage and improving cutting stability
Direct chucking for 20mm tools or with collets for 2-16mm range offers exceptional flexibility to accommodate a wide range of tool shank diameters using the same chuck
Run-out guarantee 5m at 3 d delivers consistent high precision and improved surface finishes, critical for accurate machining
Exceptional clamping torque (e.g. C20 = 980 nm.) ensures tool security under high-load cutting conditions, reducing tool pull-out and improving productivity
Clamping at both nose and root eliminates weak points in the tool interface, resulting in enhanced rigidity and extended tool life
Robust one-piece body with sub-zero treatment provides long-term dimensional stability and resistance to thermal expansion, ideal for demanding CNC environments
High-speed capability up to 40,000 rpm (G2.5 balance) enables use in high-speed machining centres without sacrificing balance or safety
