3M 7100036877 Roloc Disc Backup Pad 1 in 1/4-20

Product Description

The 3M 7100036877 is a Roloc disc backup pad designed to support 1-inch diameter Roloc TP abrasive discs during grinding, blending, and finishing operations. The pad features a 1/4-20 internal thread for direct mounting to tools with a 1/4-20 external threaded shaft, or it can be used with a Roloc shank adapter to fit collet chuck tools. At 0.08 pounds, this lightweight pad is suited for handheld pneumatic and electric die grinders used in metal fabrication, auto body, and surface prep work.

This backup pad is used wherever 1-inch Roloc TP abrasive discs are needed in tight spaces or detail work — common in automotive body shops, metal fabrication facilities, and MRO operations. Its compact 1-inch diameter makes it practical for edge work, weld blending, and confined-area surface preparation where larger pads cannot reach. The 1/4-20 internal thread provides a secure, direct attachment to compatible tool shafts without the need for an additional adapter in most die grinder setups.

Key Features

• Supports 1-inch diameter Roloc TP abrasive discs
• 1/4-20 internal thread mounts directly to tools with 1/4-20 external threaded shafts
• Compatible with Roloc shank adapter for use in collet chuck tools
• Lightweight at 0.08 pounds for reduced operator fatigue during extended use
• Compact 1-inch profile suited for detail and confined-space surface work

Compatibility

Designed to support 3M Roloc TP 1-inch diameter abrasive discs and to mount on tools equipped with a 1/4-20 external threaded shaft or a Roloc shank adapter for collet chuck tools.

Installation Notes

Installation is performed by metalworkers, fabricators, and auto body technicians using standard die grinders. Before mounting or removing the pad, ensure the tool is powered off and disconnected from the air supply or power source. Thread the pad onto the 1/4-20 external shaft by hand and verify it is seated securely before operating. When using a Roloc shank adapter for collet chuck tools, confirm the shank is properly tightened in the collet before attaching the abrasive disc.

Technical Specifications

• Disc Diameter: 1 inch
• Thread Size: 1/4-20 Internal
• Weight: 0.08 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 5
• UPC: 00051144777235

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100036877