Diablo Decking Saw Blade D1284CD 12 Inch 1 Arbor (84T MTCG TiCo Carbide 0.102 Kerf 5000 RPM TrexBlade Composite Decking Cellular PVC Plastic Slicer)
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Precision-Engineered 12 Inch 84-Tooth MTCG TrexBlade Composite Decking Circular Saw Blade
The Diablo D1284CD 12-Inch 84-Tooth TrexBlade Composite Decking Saw Blade operates as an architectural-spec cutting disc engineered to produce clean, melt-free miter crosscuts and perimeter borders in capped composite decking, cellular PVC, composite siding, and plastics. Formulated with TiCo high-density titanium cobalt composite-grade carbide tips ground in a Modified Triple Chip Grind (MTCG) geometry, this 1-inch arbor blade functions on compound miter saws, sliding miter saws, and table saws operating up to 5,000 RPM. Featuring a 0.102-inch kerf profile, a -3-degree negative hook angle, laser-cut stabilizer vents, and a thermal red Perma-SHIELD non-stick coating, the unit prevents edge mushrooming, surface swirl marks, and material melting during continuous high-production cutting.
Best Used For:
- Capped Composite Decking Fabrication: Executing swirl-free miter cuts and butt joints in Trex, TimberTech, and Fiberon composite deck planks without edge melting.
- Cellular PVC Board & Trim Fitting: Slicing PVC fascia boards, decorative trim, and synthetic siding sheets with smooth, burr-free edge profiles.
- Plastic & Synthetic Lumber Slicing: Cutting dense polyethylene, solid vinyl extrusions, and plastic lumber without material gumming or tooth clogging.
Key Performance & Safety Features
- Modified Triple Chip Grind (MTCG): Specialized tooth profile keeps composite material cool to eliminate surface swirls, edge melting, and mushrooming.
- TiCo High-Density Composite Carbide: Custom-formulated micro-grain carbide tips withstand abrasive plastic resins for extended cutting life.
- -3° Negative Hook Angle Geometry: Prevents aggressive climbing into soft PVC or composite core material on miter saws for improved cut control.
- Perma-SHIELD Non-Stick Thermal Barrier: Protective red fluoropolymer coating guards against extreme friction heat, resin pitch gumming, and core rust.
- Laser-Cut Anti-Vibration Stabilizer Vents: Precision expansion slots absorb noise resonance and lateral movement to maintain straight, true tracking at 5,000 RPM.
- Thin Kerf Design (0.102 in.): Reduces physical material removal to minimize motor amp draw on jobsite miter saws.
What's Included
- (1) Diablo D1284CD 12" 84-Tooth TrexBlade Composite Decking Saw Blade with 1" Arbor
Technical Specifications
| Brand Name | Diablo Tools |
| Model Number SKU | D1284CD |
| Product Series | Diablo TrexBlade™ Series |
| Tool Classification | Composite Decking Circular Saw Blade |
| Blade Outer Diameter | 12.00 in. |
| Arbor Hole Specification | 1.00 in. Round |
| Total Tooth Count | 84 Teeth |
| Tooth Grind Geometry | MTCG (Modified Triple Chip Grind) |
| Cutter Tip Composition | TiCo™ High-Density Titanium Cobalt Carbide |
| Cutting Kerf Width | 0.102 in. (2.6 mm) |
| Core Plate Thickness | 0.071 in. (1.8 mm) |
| Hook Angle Geometry | -3° (Negative Hook Angle) |
| Maximum Operating Speed | 5,000 RPM |
| Surface Finish Treatment | Perma-SHIELD® Non-Stick Fluoropolymer Red Coating |
| Manufacturer Approvals | Officially Approved by Trex Company |
| Primary Machine Compatibility | 12-Inch Miter Saws, Sliding Compound Miter Saws & Table Saws |
| Target Material Substrates | Composite Decking, Cellular PVC, Plastic Trim, Synthetic Siding |
Pro-Tip: When cutting capped composite decking planks on a sliding miter saw, maintain a firm, steady push stroke through the cut without stopping mid-pass. Allowing the saw blade to dwell inside composite material generates friction heat that causes capstock melting; a smooth continuous feed allows the 84 MTCG carbide teeth and -3° hook angle to shear cleanly without edge swarf buildup.