1 / 7CRAFTSMAN V20 Brushless RP 4-1/2 in. Angle Grinder CMCG451B
The CRAFTSMAN V20 Brushless RP CMCG451B is a cordless 4-1/2-inch small angle grinder sold as a tool-only package. Its paddle switch, tool-free guard and three-position side handle suit buyers seeking adjustable handling for general grinding tasks, but the battery and charger are sold separately.
At a glance
- Brushless motor, with an advertised power increase compared with CRAFTSMAN's brushed CMCG400 grinder.
- Paddle switch and three-position side handle.
- Tool-free guard adjustment.
- VERSATRACK-compatible when used with separately sold clips and wall system.
Reference price: $189.00
Price checked: Nov 13, 2026
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Pros and cons
Pros
- Tool-free guard adjustment and a three-position handle provide practical ways to adapt the setup for a task.
- Cordless design avoids a power cord at the work area.
- Customer feedback reports good functionality and adequate power for normal tasks.
Cons
- The tool-only configuration does not include a battery or charger, so buyers without a compatible battery must budget for them separately.
Technical specifications
9 specifications| Brand | CRAFTSMAN |
|---|---|
| Model | CMCG451B |
| Power configuration | Battery Powered |
|---|---|
| Voltage | 20 volts |
| Maximum rotational speed | 8500 rpm |
| Dimensions listed | 36.3L x 15.2W x 13.2H centimetres |
|---|---|
| Weight listed | 2.35 kg |
| Material listed | Metal |
|---|---|
| Colour | Red |
What to know before buying
Listing details to confirm
The listing describes the grinder as 4-1/2 in. but gives dimensions of 36.3L x 15.2W x 13.2H centimetres and weight of 2.35 kg without clarifying whether those figures include packaging. The 20-volt label refers to maximum initial battery voltage, with nominal voltage stated as 18 volts. The advertised power comparisons use specified CRAFTSMAN brushed-grinder or competitor baselines and test conditions, not an unconditional performance guarantee. The style field names CMCF800C2 while the product model is CMCG451B. Battery runtime varies in customer feedback, and no runtime figure is supplied.
What’s in the box
- CMCG451 angle grinderIncluded
- Power adapterNot included
Who is it for?
A good fit for
- CRAFTSMAN V20 owners who already have a compatible battery and charger.
- Buyers wanting a cordless small grinder with a paddle switch, adjustable guard and repositionable side handle.
- General grinding work where an advertised maximum speed of 8500 rpm is relevant.
Less suited to
- Buyers who need a complete battery-and-charger kit in the box.
- Anyone who needs confirmed runtime figures or quantified output for a particular workload before choosing a grinder.
Customer reviews on Amazon
- 5 stars
80% 80% - 4 stars
13% 13% - 3 stars
4% 4% - 2 stars
1% 1% - 1 star
2% 2%
Customer feedback reports that the grinder works well for normal tasks and describes its quality and power positively. Battery-life experiences are mixed, which matters for a cordless tool because no runtime figure is supplied and this package excludes the battery and charger. Aggregate ratings are mostly five-star, but they do not establish how it performs in a specific workload.
Positive themes
- Customers describe the tool as good quality and report that it works well for their needs.
- Feedback describes the power as sufficient for normal tasks.
Mixed feedback
- Customer experiences with battery life are mixed.
Frequently asked questions
Are the battery and charger included?
No. The listing identifies this as tool only and says the battery and charger are sold separately.
What are the grinder's voltage and maximum speed?
The listed values are 20 volts and 8500 rpm. The listing clarifies that 20 volts is maximum initial battery voltage and states nominal voltage is 18 volts.
Can the guard and side handle be adjusted?
The listing says the guard adjusts without tools and the side handle has three positions.
Does the grinder work with VERSATRACK?
The listing says it can hang directly on the VERSATRACK wall system using clips, which are sold separately.
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Offer details
- The listing states a 3 Year Limited Warranty.