100 pcs/bag A/O Torque Sanding Discs P36-P600 for Metal Deburring Grinding Polishing Drill Die Grinder Air Polisher Tools

Technical Specifications

• Product Type: 2" (50mm) R-Type Torque Quick Change Aluminum Oxide Sanding Discs
• Disc Diameter: 50 mm (approx. 2 inches)
• Package Quantity: 100 pcs per bag (+ 1 pc 1/4" / 6.35mm shank rubber backing holder pad included)
• Fastener / Mounting Interface: R-Type male threaded roll-on torque locking button (Roloc compatible)
• Backing Shank Mandrel: 1/4 inch (6.35 mm / 6 mm) round steel mandrel for standard chucks
• Abrasive Material (研磨材料): Premium Brown Fused Aluminum Oxide (AO) grain with dual resin bonding
• Available Grit Grades: P36, P60, P80, P100, P120, P180, P240, P320, P600
• Backing Substrate: Heavy-duty tear-resistant X-weight waterproof poly-cotton backing cloth
• Sanding & Polishing Applications (打磨应用): Fast stock removal, weld seam blending, edge deburring, rust and mill scale cleanup, paint stripping, and surface leveling
• Suitable Workpiece Materials (适用材料类型): Carbon steel, stainless steel, cast iron, aluminum, brass, copper, sheet metal, hard plastics, and fiberglass
• Machine Compatibility: Air die grinders, pneumatic angle polishers, electric rotary tools, and power drills with 1/4" collet
• Maximum Safe Operating Speed: Up to 25,000 RPM (Optimal speed 12,000 – 20,000 RPM)

Key Features & Performance Highlights

• Fast Torque Roll-On Mechanism: Secure half-turn twist-on / twist-off locking ensures rapid disc replacement without slippage, vibration, or detachment at high rotational speeds.
• Premium Fused Aluminum Oxide: Tough, self-sharpening abrasive grains deliver high cutting efficiency, resisting premature loading, grain shelling, and overheating on metal workpieces.
• Heavy-Duty Tear-Resistant Backing: Reinforced multi-layer cloth backing with high edge durability provides consistent cutting contact on tight curves, corners, and flat contours.
• Comprehensive Grit Selection: Complete workshop coverage spanning heavy weld grinding and coarse beveling (P36–P80), pre-paint smoothing and surface conditioning (P100–P240), to ultra-fine scratch blending (P320–P600).

Workshop Application & Grit Selection Guide

• P36 – P60 (Coarse Stock Removal): Rapid removal of heavy weld seams, flash spatter, casting parting lines, deep pits, and scale.
• P80 – P120 (Medium Blending & Deburring): Smoothing stamped metal edges, blending repaired zones, and leveling sheet metal joints.
• P180 – P240 (Fine Surface Prep): Evening out tool marks, preparing surfaces for primer adhesion, and uniforming scratch patterns.
• P320 – P600 (Ultra-Fine Pre-Polish Conditioning): Eliminating micro-scratches, feathering repair borders, and preparing metal surfaces for final buffing or coating.