Description
The 3M 7100258731 is a 4 1/2-inch ribbed backup pad designed to provide firm, repeatable support during heavy grinding and beveling operations. This one-piece, ribbed design increases unit pressure, which improves the fracturing action of 3M Cubitron II Fibre Discs, resulting in higher cut rates and longer disc life. A threaded attachment ensures secure mounting and quick installation to common pneumatic angle grinders and TN quick-change systems. The extra-hard, stiff density face is tuned for coarse grit fiber discs (36+ grit) and is ideal for heavy stock removal and weld grinding. The low-profile form factor fits most tools and guards, while spacers permit simple height adjustment for a range of applications. The single-piece construction reduces lost parts and simplifies ordering versus multi-piece hubs and faceplates. Technicians and production teams will value the predictable abrasive performance when used as part of a matched 3M grinding system.
Product Features and Benefits
Ribbed design for disc stability and increased unit pressure
Full-face ribs concentrate pressure, allowing for better fracturing of the precision-shaped grain in Cubitron II discs, which improves cut rate and abrasive life.
One-piece construction to reduce lost parts
The 3M 88655 Backup Pad features a one-piece faceplate that eliminates separate hubs for fewer parts to lose and simplifies inventory and field service logistics.
Extra-hard face for heavy grinding
High-stiffness backing material supports coarse fiber discs during heavy stock removal and weld grinding without excessive deflection.
Threaded attachment, quick, secure mounting
The 3M 7100258731 standard threaded design secures the pad to angle grinders, providing consistent concentricity and fast replacement on the shop floor.
Low-profile, spacer-adjustable design
The low-profile form fits most guards; included spacer options let you fine-tune pad height for different disc and tool combinations.
Full-system compatibility for best results
3M backing pads are optimized for use with 3M Cubitron II Fibre Discs and 3M pneumatic grinders to maximise cut, life, and process consistency..
Product Specifications
Manufacturer Part Number | 7100258731 |
Legacy SKU | 60440243842 |
Overall Diameter (Inch) | 4.5" |
Overall Diameter (mm) | 114.3mm |
Maximum Speed | 13300.0 rpm |
Abrasive Attachment Type | Disc Pad Hub |
Application | Grinding |
Color Family | Red |
Density Rating | Extra Hard |
Formula | Red |
Product Type | Back-up Pad |
Shape | Round |
Frequently Asked Questions
How does the ribbed design improve disc performance?
The ribbed design increases unit pressure and stabilizes the disc face, which improves cutting action and abrasive life.
Is this a suitable 4.5 inch angle grinder pad for weld grinding?
Yes, the 3M 88655-inchup Pad is extra hard and recommended for heavy weld grinding with coarse fiber discs.
Can I use this pad with other 3M backing pads and abrasives?
Yes, it is compatible with select 3M Cubitron II Fibre Discs and some Scotch-Brite nonwoven abrasives as part of a system approach.
Does the one-piece design reduce lost parts compared to two-piece faceplate systems?
Yes, the single-piece faceplate minimizes separate components, lowering the chance of lost parts and simplifying replacement.

Warning:
This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov