Diablo Demo Demon DS0906CWS3 9 in. Carbide Reciprocating Blade (3-Pack) Review (2026)
By Nate Sawyer, Editor · Updated July 2026
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- Demolition
- Nail embedded wood
- Remodeling
A 9 in. carbide-tipped reciprocating blade (5/7 variable TPI, 3-pack) for demolition through nail-embedded wood that kills bi-metal blades, with a Perma-Shield coating that fights gumming in wet framing. Diablo rates it up to ~50x bi-metal life. It costs several times more per blade, leaves a rough edge, and the tips chip if you twist or pry.
Pros
- Carbide teeth survive hidden nails and screws that instantly kill bi-metal blades
- Perma-Shield coating cuts gumming when ripping through wet or resinous framing lumber
- Manufacturer rates it up to ~50x the life of a standard bi-metal demo blade in nail-embedded wood
Cons
- Costs several times more per blade than plain bi-metal, so it is overkill for clean lumber
- 5/7 TPI leaves a rough, splintery edge unsuited to any finish cut
- Carbide tips can chip if you twist or pry the blade in a bind
Specifications
| TPI | 5/7 variable |
|---|---|
| Length | 9 in |
| Material | Carbide-tipped |
| Shank | Universal 1/2 in tang |
| Best cut | Wood with nails / demo |