High-Precision 4A2 Metal Bond Grinding & Polishing Wheel

High-Precision 4A2 Metal Bond Grinding & Polishing Wheel (D15 fine grains)

Achieve flawless surface finishes and uncompromising geometric accuracy with our premium 4A2 Metal Bond Grinding & Polishing Wheel. Featuring a compact D15 (15mm Diameter) design, this wheel is engineered for high-precision internal grinding, micro-machining, and fine polishing applications.

Utilizing an advanced metallic matrix, our 4A2 wheel securely locks superabrasive grains (Diamond or CBN) in place, delivering an exceptionally long tool life and superb profile retention. It is the ultimate choice for manufacturers who require Mirror-like finishes on ultra-hard materials.

Key Features & Benefits

• Exceptional Profile Retention: The rugged metal bond matrix resists wear far better than resin or vitrified bonds. It maintains its precise 4A2 shape under heavy loads, ensuring consistent part-to-part accuracy.

• Superior Surface Finish (Polishing Grade): Specially formulated with ultra-fine micron grits, this D15 wheel removes microscopic imperfections to deliver brilliant, high-gloss, and scratch-free surface polishes.

• Excellent Thermal Conductivity: The metallic core and bond efficiently dissipate grinding heat away from the contact zone, preventing thermal distortion and burning on delicate or heat-sensitive workpieces.

• Unmatched Wear Resistance: Offers an incredibly long service life, reducing the frequency of wheel replacements, minimizing machine downtime, and drastically lowering your cost-per-piece.

• High Operational Stability: Precision-balanced design ensures vibration-free operation at high RPMs, which is critical for micro-grinding and internal polishing tasks.

Main Applications

This D15 4A2 metal bond wheel is highly recommended for precision polishing and fine finishing of:

• Tungsten Carbide & Ceramics: Ideal for mold and die components, ceramic seals, and wear-resistant parts.

• Optical & Sapphire Components: Fine polishing of sapphire glass, optical lenses, and hard crystals.

• Medical Devices: Precision components requiring flawless, sterile-grade surface finishes.

• Small Hole & Internal Grinding: Perfect for internal micro-polishing of aerospace and automotive precision valves.

OEM/ODM Customization Available: We can fully customize the bore size, layer thickness (T), abrasive width (W), and total height (H) to seamlessly fit your specific high-speed spindles and CNC machinery.