Milwaukee
M18 FUEL SAWZALL Reciprocating Saw 2821-20
$249
Released 2020-11
Best Reciprocating Saws · head-to-head
M18 FUEL SAWZALL Reciprocating Saw 2821-20 vs 20V MAX POWERCONNECT Reciprocating Saw BDCR20B
A sourced, side-by-side comparison. 20V MAX POWERCONNECT Reciprocating Saw BDCR20B is cheaper at $59. Every spec and price links to its source.
Black+Decker
20V MAX POWERCONNECT Reciprocating Saw BDCR20B
$59Cheaper
Which is better: the M18 FUEL SAWZALL Reciprocating Saw 2821-20 or 20V MAX POWERCONNECT Reciprocating Saw BDCR20B?
The 20V MAX POWERCONNECT Reciprocating Saw BDCR20B wins 1 of the 1 specs we compare head to head; the other wins 0. The 20V MAX POWERCONNECT Reciprocating Saw BDCR20B is the cheaper at $59. The 20V MAX POWERCONNECT Reciprocating Saw BDCR20B both leads on specs and costs less — the straightforward pick.
See M18 FUEL SAWZALL Reciprocating Saw 2821-20 on Amazon See 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 | M18 FUEL SAWZALL Reciprocating Saw 2821-20 | 20V MAX POWERCONNECT Reciprocating Saw BDCR20B |
|---|---|---|
| US price | $249 | $59 |
| 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 — M18 FUEL SAWZALL Reciprocating Saw 2821-20: milwaukeetool.com (verified 2026-06-20). 20V MAX POWERCONNECT Reciprocating Saw BDCR20B: blackanddecker.com (verified 2026-06-20).
What's the difference between the M18 FUEL SAWZALL Reciprocating Saw 2821-20 and 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: M18 FUEL SAWZALL Reciprocating Saw 2821-20 18 V vs 20V MAX POWERCONNECT Reciprocating Saw BDCR20B 20 V
- Stroke length (in): M18 FUEL SAWZALL Reciprocating Saw 2821-20 1.25 in vs 20V MAX POWERCONNECT Reciprocating Saw BDCR20B 0.875 in
- Brushless: M18 FUEL SAWZALL Reciprocating Saw 2821-20 true vs 20V MAX POWERCONNECT Reciprocating Saw BDCR20B false
- Weight (lb): M18 FUEL SAWZALL Reciprocating Saw 2821-20 6.8 vs 20V MAX POWERCONNECT Reciprocating Saw BDCR20B 4.1