The 3M 7100247890 Cubitron II 984F belt is a narrow-profile abrasive designed for fine finishing and precise surface preparation. This compact belt, measuring 1.125" × 30.0", provides controlled material removal and 120+ grit performance for parts with refined texture. In contrast to traditional open-coat media, precision-shaped ceramic grain geometry provides predictable wear and a consistent smooth finish. The belt, which is built on a YF-weight cloth backing, strikes a balance between flexibility and dimensional stability to ensure consistent tracking in lightweight machines. Closed-coat application concentrates abrasive exposure, ensuring that each pass removes material efficiently while maintaining surface integrity. The Fabri-Lok splice is a long-lasting seam made for short-run fixtures and narrow tooling applications. When used for polishing, blending, or final-stage finishing, the single-flex construction improves contact uniformity and reduces chatter. This 120 grit 3M cubitron format is an excellent replacement for a 120 grit sanding disc or a 3M roloc 120 grit disc in narrow or elongated work envelopes. When you need a precision 120 grit sanding solution that reduces rework and speeds up handoffs to subsequent processes, choose the 3M 7100247890. This belt, specially made for professional shops, enables technicians to achieve consistent finishes on metals and engineered surfaces.
Narrow 1.125" × 30" Precision Format
Compact dimensions allow use in confined fixtures and narrow conveyors while delivering the refined action expected of a 3M cubitron 120 grit belt.
120+ Grit for Fine Surface Control
The 120+ grit construction targets light stock removal and surface refinement, making it a go-to alternative to a 120 grit sanding disc.
Precision-Shaped Ceramic Grain
Engineered ceramic abrasives fracture predictably to preserve cutting efficiency and produce consistent finishes, unlike conventional abrasives.
YF-Weight Cloth Backing for Stable Tracking
Durable cloth backing resists stretch and supports steady belt tracking in bench fixtures and narrow grinding setups.
Fabri-Lok Splice for Seam Reliability
Fabric-sealed splice reduces seam-related snags and improves run-time reliability in intermittent or fixture-based operations.
| Manufacturer Part Number | 7100247890 |
| Overall Length (Inch) | 30.0" |
| Overall Length (mm) | 762.0mm |
| Overall Width (Inch) | 1.125" |
| Overall Width (mm) | 28.575mm |
| Abrasive Material | Precision Shaped Ceramic |
| Backing Material | Cloth |
| Backing Weight | YF Weight |
| Coat Type | Closed Coat |
| Color Family | Red |
| Flex Type | Single-Flex |
| Grit | 120+ |
| Splice Type | Fabri-Lok |
| Product Form | Belt |
| Product Number | 984F |
What makes the 3M 7100247890 suited to fine finishing?
Its 120+ grit and precision-shaped ceramic grain provide light, uniform material removal ideal for final-stage polishing and surface preparation.
Can this belt replace a 120 grit sanding disc in tight setups?
Yes, the narrow 1.125" width and 30" length let it serve as a practical 120 grit sanding disc alternative in constrained fixturing.
Which backing does the 7100247890 use, and why does it matter?
The YF-weight cloth backing maintains dimensional stability and tracking accuracy, important for consistent finishes in production runs.
Is the Fabri-Lok splice appropriate for automated or fixture use?
Fabri-Lok splicing gives a robust seam suited to fixture-based and intermittent automated applications where seam strength matters.
What typical tasks should I use this 120 grit 3M cubitron belt for?
Use it for light blending, final sanding before coating, polishing edges, and gentle deburring where a 120 grit sanding disc is normally applied.
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