Milwaukee
Milwaukee M18 FUEL SAWZALL Reciprocating Saw 2821-20
$249
Released 2020-11
Best Reciprocating Saws · head-to-head
Milwaukee M18 FUEL SAWZALL Reciprocating Saw 2821-20 vs Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B
A sourced, side-by-side comparison. Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B is cheaper at $36. Every spec and price links to its source.
Black+Decker
Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B
$36Cheaper
Which is better: the Milwaukee M18 FUEL SAWZALL Reciprocating Saw 2821-20 or Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B?
The Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B wins 1 of the 1 specs we compare head to head; the other wins 0. The Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B is the cheaper at $36. The Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B both leads on specs and costs less — the straightforward pick.
See Milwaukee M18 FUEL SAWZALL Reciprocating Saw 2821-20 on Amazon See Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Milwaukee M18 FUEL SAWZALL Reciprocating Saw 2821-20 |  Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B |
|---|---|---|
| US price | $249 | $36 |
| Brand | Milwaukee | Black+Decker |
| Released | 2020-11 | — |
| Power source | cordless | cordless |
| Amps or voltage | 18 V | 20 V |
| Strokes per min max | 3000 | 3000 |
| Stroke length (in) | 1.25 in | 0.875 in |
| Orbital action | No | — |
| Tool less blade change | Yes | Yes |
| Brushless | Yes | No |
| Weight (lb) | 6.8 | 4.1 |
| Release | 2020 | — |
Sources — Milwaukee M18 FUEL SAWZALL Reciprocating Saw 2821-20: milwaukeetool.com (verified 2026-06-20). Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B: blackanddecker.com (verified 2026-11-03).
What's the difference between the Milwaukee M18 FUEL SAWZALL Reciprocating Saw 2821-20 and Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B?
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.
- Amps or voltage: Milwaukee M18 FUEL SAWZALL Reciprocating Saw 2821-20 18 V vs Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B 20 V
- Stroke length (in): Milwaukee M18 FUEL SAWZALL Reciprocating Saw 2821-20 1.25 in vs Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B 0.875 in
- Brushless: Milwaukee M18 FUEL SAWZALL Reciprocating Saw 2821-20 true vs Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B false
- Weight (lb): Milwaukee M18 FUEL SAWZALL Reciprocating Saw 2821-20 6.8 vs Black+Decker 20V MAX POWERCONNECT Reciprocating Saw BDCR20B 4.1