AMAT 3920-00800
Product Name: ER20 Collet Sealing Disc
Product Description: A precision-machined metal sealing disc designed for use with ER20 collet tool holders in CNC machining operations. It provides a leak-proof seal for coolant-through tooling systems.
Technical Specifications:
- Collet Series: ER20
Detailed content
- Clamping Range: 7.5–8.0mm shank diameter
- Material: High-grade hardened steel
- Surface: Black oxide finish for corrosion resistance
- Dimensions: 36mm OD x 16mm ID x 5mm thick
Functional Features:
- Coolant Sealing: Prevents high-pressure coolant leakage
- Tool Protection: Shields collet from chips and contaminants
- Precision Fit: Exact concentricity for balanced high-speed operation
- Durability: Resists wear and deformation under pressure
Application: Used in AMAT tool maintenance and machine shops for CNC tool holders with coolant-through capability.







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