3M 7100138159 Clean Sanding Interface Pad 33 Holes

Product Description

The 3M 7100138159 is a clean sanding interface pad designed for use with 3 inch x 4 inch orbital sanders. Measuring 3 inches x 4 inches x 0.5 inches, this foam pad fits between the sander backup pad and the abrasive sheet to provide a cushioned sanding surface. The durable foam construction allows the operator to sand into corners without damaging the workpiece. Thirty-three hole patterns align precisely with compatible backup pads to maintain dust extraction efficiency throughout the sanding operation. Licensed tradespeople and finishing contractors use this pad for controlled material removal on flat and contoured surfaces.

This interface pad is suited for residential and commercial finishing applications where surface quality and dust control are priorities. It is compatible with both central vacuum and self-generating vacuum sanding systems. The pad works with 3 inch x 4 inch orbital sander platforms where a softer intermediate layer is needed to conform to the work surface and reduce the risk of through-sanding or gouging on finish work.

Key Features

• Durable foam construction conforms to corners without damaging the workpiece
• 33-hole pattern aligns with Hookit Clean Sanding Backup Pads for uninterrupted dust extraction
• Compatible with central vacuum and self-generating vacuum sanding systems
• Measures 3 inches x 4 inches x 0.5 inches to fit standard orbital sander platforms
• Sold individually — confirm minimum order quantity requirements before purchasing

Compatibility

Designed for use with the 3M 3 inch x 4 inch orbital sander. The 33-hole pattern is matched to Hookit Clean Sanding Backup Pads with 33 holes. Compatible with central vacuum and self-generating vacuum sanders.

Installation Notes

Ensure the sander is powered off and disconnected from any power source before attaching or removing the interface pad. Align the holes in the interface pad with the holes in the backup pad before securing the abrasive sheet to maintain proper dust extraction. Inspect the foam for tears or compression set before each use, as a damaged pad will reduce dust collection efficiency and surface finish quality.

Technical Specifications

• Dimensions: 3 inches x 4 inches x 0.5 inches
• Hole Count: 33 holes
• Weight: 0.06 pounds
• Material: Foam
• Unit of Measure: Each
• UPC: 00051141283241

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100138159