FLEX FX3171A-Z 24V Brushless Angle Grinder 5 Inch
- Maximum Rotational Speed: 10000 rpm
- Power Source: Battery
- Material Type: Blend
- Manufacturer Warranty Description: See Manufacturer's Website for Details
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
Worth considering if cordless freedom at 24 volts and 10,000 RPM fits your grinding needs, though 5.8 pounds is on the heavier side for extended handheld use.
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ASIN: B0CT1X92RDModel: FX3171A-ZCategory: Power Grinders
Overview
FLEX FX3171A-Z is a battery powered grinder running on 24 volts with a no-load speed of 10,000 RPM and an item weight of 5.8 pounds.
Cordless grinders trade the reach of a cord for battery dependence, and a 24 volt platform at 5.8 pounds sits toward the mid-power, mid-weight end of that category, useful for general fabrication work but not the lightest option available.
- FLEX branded grinder
- Battery powered, 24 volts
- 10,000 RPM speed
- Item weight 5.8 pounds
Who it's for
Works for users wanting a cordless grinder for metalwork or fabrication away from an outlet. Less ideal for anyone prioritizing the lightest possible handheld weight.
Pros and cons
- Cordless 24V battery platform
- 10,000 RPM no-load speed
- 5.8 pound weight adds fatigue over extended use
- Battery capacity and runtime not specified
Performance notes
At 10,000 RPM, the disc speed sits in a typical range for angle grinders, and the 24 volt battery platform points to a mid-power cordless system. The 5.8 pound weight means more arm fatigue over long sessions compared to lighter cordless models.
Specifications
| Brand | FLEX |
|---|---|
| Model | FX3171A-Z |
| Dimensions & fit | |
| Item Weight | 5.8 poundshigher than 84% of 107 power grinders |
| Item Dimensions L X W X H | 12.6 × 4.1 × 3.1 inches |
| Capacity & performance | |
| Maximum Rotational Speed | 10000 rpmlower than 60% of 122 power grinders |
| Power & efficiency | |
| Power Source | Battery |
| Voltage | 24 voltslower than 59% of 103 power grinders |
| Construction & materials | |
| Material Type | Blend |
| Color | Grey,black |
| Included components | |
| Unit Count | 1 |
| Included Components | Tool Only |
| Warranty & support | |
| Manufacturer Warranty Description | See Manufacturer's Website for Details |
| Other details | |
| Style Name | Paddle Switch - Tool Only |
| Item Type Name | DISC_GRINDER_TOOL |
Closest rivals on specs
Makita XAG09Z 18V LXT Brushless Cut-Off Angle Grinder- Voltage 24 vs 18 volts (+33%)
20V Brushless Cordless Angle Grinder Kit with 35 Accessories- Voltage 24 vs 20 volts (+20%)
Frequently asked questions
Is the FLEX FX3171A-Z grinder corded or cordless?
Cordless, running on a 24 volt battery.
What is the no-load speed of the FLEX FX3171A-Z?
10,000 RPM.
How much does the FLEX FX3171A-Z grinder weigh?
5.8 pounds.