Arc Abrasives 31665 Surface Conditioning Disc 3in 60 Grit

Product Description

The ARC ABRASIVES 31665 is a 3-inch Type R surface conditioning disc engineered for edge grinding and surface prep work on metal. It features an extremely flexible backing combined with 100 percent cotton abrasive construction, allowing the disc to conform to contours and edges without loading or gouging. At 60 grit, it delivers aggressive cutting action suited for stock removal and blending passes. This disc is sized for right-angle grinders and die grinders fitted with a Type R spin-on mandrel. It is a standard tool in the kits of metal fabricators, welders, and sheet metal workers who need consistent results on flat and curved workpieces.

This disc is designed for edge grinding applications on cold rolled mild steel and stainless steel sheet. The flexible cotton-backed construction makes it well suited for situations where a rigid disc would skip or chatter along an edge or irregular surface. Typical use cases include weld seam blending, burr removal, and light surface conditioning prior to finishing. The 3-inch diameter fits compact grinder heads used in tight fabrication and repair scenarios.

Key Features

• Extremely flexible backing conforms to edges and contoured surfaces
• 100 percent cotton abrasive construction resists loading on metal surfaces
• 60 grit provides aggressive stock removal and blending capability
• Type R quick-connect mount for fast disc changes on compatible grinders
• Rated for use on cold rolled mild steel and stainless steel sheet
• 3-inch diameter fits compact right-angle and die grinder heads

Compatibility

Designed for use with Type R spin-on mandrel grinders. Suitable for edge grinding and surface conditioning on cold rolled mild steel and stainless steel sheet applications.

Installation Notes

Installation is performed by threading the disc onto a compatible Type R mandrel by hand until seated. Verify the grinder is unplugged or the power source is locked out before mounting or removing the disc. Inspect the disc for tears or damage before each use and do not exceed the maximum RPM rating marked on the disc or mandrel. Eye protection and appropriate PPE are required during operation per standard shop safety practice.

Technical Specifications

• Diameter: 3 inches
• Grit: 60
• Type: Type R
• Backing Material: Cotton
• Abrasive Material: 100 percent cotton abrasive
• Weight: 0.0176 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 50

Standard Information

• Brand: ARC ABRASIVES
• Manufacturer Part Number: 31665