The Reciprocating Saw: A Complete Guide
What Is a Reciprocating Saw?
A reciprocating saw is a handheld power tool that cuts using a push-and-pull (back-and-forth) motion of the blade — hence the name reciprocating. Unlike circular saws that spin or jigsaws that move in small strokes, the reciprocating saw uses long, aggressive strokes to cut through almost any material imaginable.
It was originally designed for demolition work, and that remains its greatest strength: cutting through walls, pipes, tree branches, and materials that would destroy a more delicate tool.
How It Works
The motor drives a mechanism (usually a scotch yoke or a wobble plate) that converts rotational motion into linear back-and-forth strokes. The blade extends from the front of the tool, allowing you to plunge into surfaces, cut in tight spaces, and tackle odd angles that no other saw could reach.
Key mechanical specs to know:
Strokes per minute (SPM) — how fast the blade moves. Most saws range from 0 to 3,000 SPM, with variable speed triggers giving you control.
Stroke length — how far the blade travels per stroke. Typically 3/4 inch to 1-1/4 inches. A longer stroke removes more material faster.
Orbital action — a feature on some models where the blade moves in a slight oval path, rather than purely back-and-forth. This is more aggressive and faster for wood, but less precise.
Types of Reciprocating Saws
Corded — Delivers consistent, unlimited power. Best for heavy, sustained demolition work where you don’t want to worry about battery life.
Cordless (battery-powered) — Offers portability and convenience. Modern 18V–20V lithium-ion models are impressively powerful and suitable for most tasks.
Mini / Compact — Smaller, lighter versions for precision work in tight spaces. Popular with plumbers and electricians.
Blade Varieties
The reciprocating saw’s true superpower is blade interchangeability. Blades are identified by their TPI (teeth per inch):
| Wood | Bi-metal or carbon steel | 3–6 TPI |
| Metal / Pipes | Bi-metal | 14–24 TPI |
| Drywall | Grit/carbide edge | N/A |
| Tree branches | Pruning blade | 3–5 TPI |
| Fibreglass / Composites | Carbide-tipped | 8–10 TPI |
Lower TPI = faster, rougher cuts. Higher TPI = slower, cleaner cuts.
Common Uses
Demolition — Cutting through walls, removing old framing, tearing out flooring. The reciprocating saw was born for this.
Plumbing — Cutting copper, PVC, or cast iron pipes in situ, even in cramped crawl spaces.
Tree pruning — With a pruning blade, it becomes a powerful alternative to a chainsaw for branches up to 6–8 inches thick.
Window & door installation — Cutting openings in walls with precision.
Automotive work — Cutting exhaust pipes, rusted bolts, and sheet metal.
Nail-embedded wood — Bi-metal blades can chew right through wood with nails still in it — something that would ruin most other saw blades instantly.
Safety Tips
A reciprocating saw is powerful but demands respect. Keep these points in mind:
- Always check walls, floors, and ceilings for hidden pipes and electrical wires before cutting.
- Use a blade that’s the right length — too long and it can snag; too short and it’s inefficient.
- Keep a firm two-handed grip. The saw vibrates intensely, especially in demolition mode.
- Wear safety glasses, gloves, and hearing protection.
- Let the blade stop completely before setting the saw down.
- Never force the blade — let the tool do the work.
How to Choose One
When shopping for a reciprocating saw, consider:
Power — 10–12 amps for corded, 18V–20V for cordless. For heavy demolition, more is better.
Variable speed — Essential. Low speed for metal, high speed for wood.
Vibration control — Some models feature counterbalance mechanisms that dramatically reduce user fatigue on long cuts.
Shoe / footplate — A pivoting or adjustable shoe helps control cutting depth and provides stability.
Blade clamp — A tool-free blade clamp (no wrench needed) is a major convenience on busy job sites.
Popular Brands
The market leaders include Milwaukee (the original Sawzall), DeWalt, Makita, Bosch, and Ryobi at the budget end. For professional-grade demolition, Milwaukee and DeWalt consistently top reviews.
Final Thoughts
If you could only own one power saw for rough, versatile cutting work, the reciprocating saw would be a strong contender. It’s not a finishing tool — don’t expect glass-smooth edges — but for raw cutting power in the most challenging conditions, nothing beats it. Once you’ve used one to slice through a pipe in a 12-inch crawl space, you’ll wonder how you ever managed without it.
