FRK-9 Aluminum Oxide EDM Finishing Stone

The FRK-9 series is a high-performance polishing stone optimized for achieving superior surface quality on mold surfaces processed by EDM (Electrical Discharge Machining). A modified derivative of the industry-standard ARS-8 series, the FRK-9 (referenced as AS-9) provides more delicate and controlled abrasion thanks to its softer grade values.

Technical Properties:

  • Structural Composition: Consistent abrasion performance with a high-purity Aluminum Oxide structure.
  • Functional Features: Specifically engineered to rapidly eliminate EDM-induced thermal layers and deep machining marks, ensuring a seamless surface finish.
  • Ergonomic Performance Optimized for manual finishing (hand stoning) applications; it allows the operator to perform controlled material removal without distorting the surface geometry.
  • Areas of Use: Ideal for finishing stages requiring high precision, complex mold geometries shaped by EDM, and sharp corners.

Key Advantages

Shows excellent compatibility with both manual hand-stoning tools and ultrasonic/vibratory polishing machines.

Provides a homogeneous polishing finish without causing surface scratches, thanks to its softer bond structure.

Optimizes polishing time thanks to its high stock removal capacity.

EAN NO Size GRİT
Packaging
245676 x 13 x 150 mm.120Box of 12 Pieces
245686 x 13 x 150 mm.220Box of 12 Pieces
245696 x 13 x 150 mm.320Box of 12 Pieces
245706 x 13 x 150 mm.400Box of 12 Pieces
245716 x 13 x 150 mm.600Box of 12 Pieces
245726 x 13 x 150 mm.800Box of 12 Pieces
245736 x 13 x 150 mm.1000Box of 12 Pieces
245746 x 13 x 150 mm.1200Box of 12 Pieces
EAN NO Size GRİT Packaging
245753 x 13 x 150 mm. 120 Box of 12 Pieces
245763 x 13 x 150 mm.220Box of 12 Pieces
245773 x 13 x 150 mm.320Box of 12 Pieces
245783 x 13 x 150 mm.400Box of 12 Pieces
245793 x 13 x 150 mm.600Box of 12 Pieces
245803 x 13 x 150 mm.800Box of 12 Pieces
245813 x 13 x 150 mm.1000Box of 12 Pieces
245823 x 13 x 150 mm.1200Box of 12 Pieces