Does it come with a battery and charger?

No. The CMCS300B is a bare tool, so you need a Craftsman V20 battery and charger, which are sold separately.

With the right blade it handles PVC and copper pipe, lumber, pruning limbs and light demolition. The 1-inch stroke makes thick metal and heavy framing slow work.

Is it good for tight spaces?

Yes. The 14.5-inch body is short enough to fit between studs and cut in cramped spots where a corded saw will not reach.

How does it compare with a corded reciprocating saw?

It is lighter and more portable, but corded saws with longer strokes cut faster through thick material. Choose this for convenience and small jobs.

Does it use the same batteries as other Craftsman tools?

Yes. It runs on Craftsman V20 Max batteries, so it shares packs with other tools in that line.

Where is the Craftsman V20 Reciprocating Saw (CMCS300B) cheapest?

At Walmart, for $84.99, as of our latest check.

What do buyers say about the Craftsman V20 Reciprocating Saw (CMCS300B)?

Rated 4.7 out of 5 from 60 ratings.

Where can I buy the Craftsman V20 Reciprocating Saw (CMCS300B)?

16 stores we checked sell it, including Walmart, Lowe's, Zoro, Uber Eats, Shop.

Craftsman V20 Reciprocating Saw (CMCS300B)

Best price now

$84.99at WalmartChecked 2 h ago

Prices are checked against each store and labelled with when.

Visit Walmart

Craftsman V20 Reciprocating Saw (CMCS300B)

Best price now

$84.99at WalmartChecked 2 h ago

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Lowest price today: $84.99 at Walmart (checked Nov 12, 2026).

Our take on the Craftsman V20 Reciprocating Saw (CMCS300B)

The Craftsman V20 CMCS300B is a bare-tool cordless reciprocating saw that runs on the brand's 20V Max batteries. Its 1-inch stroke and variable-speed trigger cover light demolition, pruning and pipe cuts, and the tool-free blade release speeds up changes. At 14.5 inches and 3.6 lbs it slips between studs and into tight spaces, which is where it beats bulkier corded saws. It is a one-handed-light saw rather than a demolition monster, so heavy framing and thick metal go faster with a stronger saw.

Best forHomeowners already on the V20 battery platformCutting PVC, copper pipe and pruning limbsWork in tight spaces between studsLight demolition and remodel tear-out

Pros

Compact 14.5-inch body fits between studs
Light at 3.6 lbs for overhead and one-hand work
Tool-free blade changes
Variable-speed trigger gives control on different materials
Runs on the same V20 batteries as other Craftsman tools

Cons

Bare tool: battery and charger sold separately
1-inch stroke is shorter than many corded saws, so cutting is slower
Not built for heavy framing or thick metal
No orbital action or rafter hook

Craftsman V20 Reciprocating Saw (CMCS300B) prices at every store

WalmartNew
In stockSold by State 48 Distributors LLCReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$84.99Free shippingChecked 2 h ago
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Craftsman V20 Reciprocating Saw (CMCS300B) price history

Lowest price we've seen: $75.31 on Nov 13 at Amazon. Tracked across 17 stores since Nov 13.

What reviewers say

4.7 / 560 ratings

Owners rate it highly and describe it as a handy, light saw for around-the-house jobs. Most praise the compact size, easy blade changes and smooth trigger control. The main complaints are that it lacks power for heavy work and that the bare tool needs batteries bought separately.

What people mention

SizePraisedOwners like that the short body fits between studs and into cramped spaces.
WeightPraisedAt 3.6 lbs it is easy to hold overhead and use one-handed.
Blade changesPraisedThe tool-free release makes swapping blades quick.
PowerMixedFine for pipe, PVC and pruning, but owners say it is slow on thick lumber and metal.
BatteryCriticisedBuyers note the bare tool needs a V20 battery and charger, which adds to the setup.

About the Craftsman V20 Reciprocating Saw (CMCS300B)

This CRAFTSMAN V20 cordless reciprocating saw runs on a 20V max* battery. Its motor has a 1-inch stroke length. A variable speed trigger gives control when cutting a variety of materials.

A tool-free blade release allows quick blade changes. The saw is 14.5 inches long, so it fits between studs and can cut in tight places. The contoured, overmolded handle and grips are designed for comfortable use in any orientation.

Model: CMCS300B
Power source: Battery (cordless)
Voltage: 20V max*
Stroke length: 1 in.
Speed control: Variable speed trigger
Blade change: Tool-free blade release
Length: 14-1/2 in. (368.3 mm)
Weight: 3.6 lbs (1.7 kg), tool only
Color: Red

Specifications

color: RedSource
Power Source: BatterySource
Voltage (V): 20.0Source

Questions and answers

Does it come with a battery and charger?: No. The CMCS300B is a bare tool, so you need a Craftsman V20 battery and charger, which are sold separately.
What can it cut?: With the right blade it handles PVC and copper pipe, lumber, pruning limbs and light demolition. The 1-inch stroke makes thick metal and heavy framing slow work.
Is it good for tight spaces?: Yes. The 14.5-inch body is short enough to fit between studs and cut in cramped spots where a corded saw will not reach.
How does it compare with a corded reciprocating saw?: It is lighter and more portable, but corded saws with longer strokes cut faster through thick material. Choose this for convenience and small jobs.
Does it use the same batteries as other Craftsman tools?: Yes. It runs on Craftsman V20 Max batteries, so it shares packs with other tools in that line.
Where is the Craftsman V20 Reciprocating Saw (CMCS300B) cheapest?: At Walmart, for $84.99, as of our latest check.
What do buyers say about the Craftsman V20 Reciprocating Saw (CMCS300B)?: Rated 4.7 out of 5 from 60 ratings.
Where can I buy the Craftsman V20 Reciprocating Saw (CMCS300B)?: 16 stores we checked sell it, including Walmart, Lowe's, Zoro, Uber Eats, Shop.