Updated March 2026 | By ToolShed Tested Team
Quick Answer: The Milwaukee 2821-20 M18 FUEL SAWZALL is the undisputed demolition king, with its orbital action and one-inch stroke length tearing through nail-embedded lumber, cast iron pipe, and structural steel faster than any corded competitor. If demo is your business, this is the tool that earns its keep daily.
What to Look For
Demolition demands maximum aggression from a reciprocating saw. Stroke length determines how fast material is removed, with one inch being the current standard for professional demo saws. Orbital action adds a rocking motion that accelerates wood cutting dramatically but should be disabled for metal. The shoe must be robust and adjustable since it takes constant abuse against rough surfaces. Tool-free blade changes are mandatory when you are swapping between wood and metal blades dozens of times per job. Anti-vibration systems reduce fatigue during extended demolition sessions. Cordless models now match corded power, and the freedom from cords is transformative in demo environments where tripping hazards from debris are constant.
Our Top Picks
Milwaukee 2821-20 M18 FUEL SAWZALL
★ 4.9/5
| Stroke Length | 1-1/4 inch |
| Motor | M18 FUEL brushless |
| Weight | 7.8 lbs (bare) |
DeWalt DCS382B 20V MAX XR Reciprocating Saw
★ 4.6/5
| Stroke Length | 1-1/8 inch |
| Motor | 20V MAX brushless |
| Weight | 5.3 lbs (bare) |
Makita XRJ05Z 18V X2 LXT Reciprocating Saw
★ 4.5/5
| Stroke Length | 1-1/4 inch |
| Motor | Dual 18V brushless |
| Weight | 9.7 lbs with batteries |
How to Choose
For dedicated demolition contractors, the Milwaukee 2821-20 is the benchmark with unmatched cutting speed and orbital action. The DeWalt DCS382B is the smart choice if you do demo alongside other work and need a lighter tool for overhead cutting of joists and rafters. The Makita XRJ05Z provides exceptional power and vibration control for extended sessions but is best suited for ground-level and bench work due to its weight. Consider your battery ecosystem first, then prioritize stroke length and orbital action for wood-heavy demo or straight-line speed for mixed-material work.
FAQ
What blade is best for demolition?
A thick bi-metal demolition blade (8-12 TPI) handles the nail-embedded lumber, plaster, and mixed materials typical in demo. Carbide-tipped blades last dramatically longer when hitting nails and screws. Keep a metal-cutting blade (18-24 TPI) for pipe and ductwork.
Reciprocating saw vs oscillating tool for demo?
Reciprocating saws are for aggressive tear-out where speed matters and precision does not. Oscillating tools are for surgical cuts around things you want to preserve. Professional remodelers carry both, using the recip saw to open things up and the oscillating tool for detail work.
How many batteries do I need for a demolition day?
Plan for 3-4 high-capacity batteries (5.0Ah or above) for a full demo day. Heavy cutting through structural lumber and metal drains batteries in 20-30 minutes of continuous use. A rapid charger cycling batteries keeps you running.
Related: Best Cordless Drills | Best Power Tools | Tool Finder