The DS/ER Sealing Disc ensures reliable coolant sealing in ER collet systems. Designed for coolant-through applications, it prevents leaks, maintains high pressure, and improves coolant flow directly to the cutting edge.

• Precision sealing for ER16–ER40 collet sizes
• Withstands coolant pressures up to 145 bar (2100 psi)
• Durable, chemical-resistant materials
• Easy press-fit installation
• Ideal for high-speed and coolant-through machining