Description
3M™ Cubitron™ II Flap Disc 1169F – 4.5" x 7/8" (80 Grit, Type 27 / Flat)
Maximize throughput and lower your grinding costs with the 3M™ Cubitron™ II Flap Disc 1169F (80 Grit). Engineered with 3M’s proprietary Precision-Shaped Grain (PSG) technology, this flap disc continuously fractures into razor-sharp edges to cut through tough metals faster, cooler, and longer than traditional ceramic alternatives. Designed for heavy-duty grinding, blending, and finishing on a variety of metals.
Key Features & Benefits
- 3M Precision-Shaped Grain (PSG): Slice through metal with minimal effort—delivering up to 2x longer life and significantly faster cut rates.
- Versatile 80 Grit Grade: Perfect for light weld blending, surface prep, edge deburring, and smooth finishing in a single pass.
- Cooler Operation: Reduces heat buildup to protect sensitive metals like stainless steel against discoloration and thermal stress.
- Durable Polyester Backing: Heavy-duty Y-weight polyester backing resists tearing under heavy pressure.
- Flat Profile (Type 27): Ideal for flat surfaces, outside edges, and working at slight grinding angles (0°–15°).
Specifications
| Attribute | Specification |
| Manufacturer | 3M™ |
| Model / Series | Cubitron™ II Flap Disc 1169F |
| 3M ID / MPN | 7100380218 |
| Diameter | 4.5 inches (115 mm) |
| Center Hole / Arbor Size | 7/8 inch (22.23 mm) |
| Grit Grade | 80 Grit (Fine/Medium Blend) |
| Abrasive Material | Precision-Shaped Ceramic Grain |
| Disc Type / Form | Type 27 (Flat / 0°–15° Angle) |
| Backing Weight / Material | Y-weight Polyester Backing |
| Max RPM | 13,300 RPM |
| Compatible Tools | Right Angle Grinder |
Frequently Asked Questions
Q: What materials can I use the 3M 1169F Flap Disc on?
A: This disc is optimized for mild steel, stainless steel, structural steel, and non-ferrous metals. It performs exceptionally well in weld blending, deburring, and surface preparation.
Q: What is the difference between 3M Precision-Shaped Grain and standard ceramic discs?
A: Standard ceramic grains break down irregularly, creating dull edges that generate excess friction and heat. 3M’s Precision-Shaped Grain features sharp, uniform triangles that continually fracture into keen cutting points. This requires less operator pressure, generates less heat, and lasts significantly longer.
Q: Is Type 27 (Flat) right for my grinding application?
A: Type 27 flat flap discs are best suited for grinding flat surfaces, outside edges, and working at low angles (0° to 15°). If you need to grind steep angles (15° to 25°) or contoured surfaces, a Type 29 conical disc may be preferred.
Q: What tool is compatible with this disc?
A: This 4.5" x 7/8" disc mounts on any standard 4.5-inch right-angle grinder with a 7/8" arbor hub or retaining nut system rated up to 13,300 RPM.
Product Specifications
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• 3M Cubitron 3 Flap Disc 1169F Core: High-performance 4-1/2" x 7/8" 40-grit ceramic flap disc powered by re-engineered Precision-Shaped Grain for faster cutting and extended life. • 4-1/2" x 7/8" Size. • 80 Grit. |
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✔️ Rapid Stock Removal: Precision-shaped ceramic grain fractures cleanly, slicing through metal up to 49% faster than previous generations for maximum productivity. ✔️ Extended Durability: Built to last. |
