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Deal.ai › Flex
FLEX
FLEX FX3171A-Z 5" Variable Speed Angle Grinder

FLEX FX3171A-Z 5" Variable Speed Angle Grinder

5(3 ratings)

Best price now

$138.00at VM HardwareChecked 7 h ago

Compared across 23 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $138.00 at VM Hardware (checked Nov 13, 2026).
  • Checked at 23 stores.

Our take on the FLEX FX3171A-Z 5" Variable Speed Angle Grinder

The FLEX FX3171A-Z is a 24V brushless 5-inch angle grinder with a paddle switch and four speed settings. It delivers up to 10,000 RPM and includes anti-kickback protection, vibration suppression, and a tool-free guard. It suits tradespeople who need cordless convenience and safety features. Compared to fixed-speed grinders, its variable speed adds versatility, but it is sold as a bare tool and requires FLEX 24V batteries.

Best forProfessionals needing cordless grindingMetalworkers and weldersJobsite work where cordless freedom mattersUsers already on the FLEX 24V platform
Pros
  • Brushless motor for longer life and runtime
  • Variable speed with four settings for different materials
  • Anti-kickback and restart protection for safety
  • Vibration suppression reduces fatigue
  • Tool-free guard adjustment for quick changes
Cons
  • Sold as a bare tool; battery and charger not included
  • Paddle switch may not suit all users
  • No lock-on switch for continuous use
  • Heavier than some corded models

FLEX FX3171A-Z 5" Variable Speed Angle Grinder prices at every store

  • Tiger SuppliesNew

    In stockReturn policy

    $138.00Checked 7 h ago
    Visit Tiger Supplies
  • VM HardwareNew

    In stockReturn policy

    $138.00Checked 7 h ago
    Visit VM Hardware
  • Way SourceNew

    In stockReturn policy

    $139.00Checked 7 h ago
    Visit Way Source
  • Thieman Quality ProductsNew

    In stockReturn policy

    $139.00Checked 7 h ago
    Visit Thieman Quality Products
  • CSC - Contractor Supply CompanyNew

    In stockReturn policy

    $139.00Checked 7 h ago
    Visit CSC - Contractor Supply Company
  • Little Red General StoreNew

    In stockReturn policy

    $139.00Checked 7 h ago
    Visit Little Red General Store
  • Lined OutNew

    In stockReturn policy

    $139.00Checked 7 h ago
    Visit Lined Out
  • MyHackerTechNew

    In stockReturn policy

    $144.00Checked 7 h ago
    Visit MyHackerTech
  • Self Rescue TacticalNew

    In stockReturn policy

    $159.00Checked 7 h ago
    Visit Self Rescue Tactical
  • Ohio Power ToolNew

    In stock

    $159.99Free shippingChecked 7 h ago
    Visit Ohio Power Tool
  • Acme ToolsNew

    In stock

    $159.00+ $6.49 shippingChecked 7 h ago
    Visit Acme Tools
  • ToolUp.comNew

    In stock

    $159.99+ $19.70 shippingChecked 7 h ago
    Visit ToolUp.com
  • Industrial DripNew

    In stockReturn policy

    $180.83Checked 7 h ago
    Visit Industrial Drip
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $159.99Free shippingChecked 7 h ago
    Visit Amazon
  • Fasteners Tool OutletNew

    Availability unknown

    $159.99Checked 7 h ago
    Visit Fasteners Tool Outlet
  • eBayNew

    Availability unknownSold by toolup

    $184.08Checked 7 h ago
    Visit eBay
  • Beaver Industrial SupplyNew

    Availability unknown

    $199.00Checked 7 h ago
    Visit Beaver Industrial Supply
  • EngineerSupplyNew

    Availability unknown

    $199.99Checked 7 h ago
    Visit EngineerSupply
  • OC Tool HouseNew

    Availability unknown

    $199.99Checked 7 h ago
    Visit OC Tool House
  • WhiteCap.comNew

    Availability unknown

    $214.99Checked 7 h ago
    Visit WhiteCap.com
  • Global IndustrialNew

    Availability unknown

    $219.95Checked 7 h ago
    Visit Global Industrial
  • DeFusco Industrial SupplyNew

    Availability unknown

    $249.99Checked 7 h ago
    Visit DeFusco Industrial Supply
  • Rapid SuppliesNew

    Availability unknown

    $255.29Checked 7 h ago
    Visit Rapid Supplies

Also available at

  • TigerSupplies.comCheck price at TigerSupplies.com

Store links may earn us a commission.

FLEX FX3171A-Z 5" Variable Speed Angle Grinder price history

Lowest price we've seen: $138.00 on Nov 13 at TigerSupplies.com. Tracked across 14 stores since Nov 13.

About the FLEX FX3171A-Z 5" Variable Speed Angle Grinder

The FLEX FX3171A-Z is a 24V brushless 5" angle grinder with a paddle switch. It runs at up to 10,000 RPM with no load and has 4 speed settings. It is sold as a tool only, so the battery and charger are not included.

It uses a Sensor-Free brushless motor, which moves the sensors away from the motor. Safety and control features include anti-kickback braking, an electric brake, overload protection, restart protection and a soft start. The guard adjusts in one step, and the anti-vibration handle helps reduce vibration.

The grinder has a slim grip. It works with all FLEX 24V batteries, chargers and tools.

Power
24V, brushless motor
No-load speed
10,000 RPM
Speed settings
4
Disc size
4-1/2" to 5"
Arbor size
5/8"
Switch
Paddle switch, no-lock
Speed control
Constant speed and constant power
Safety
Anti-kickback, electric brake, overload protection, restart protection
Start
Soft start
Handle
Anti-vibration handle
Guard
One-step guard adjustment
Compatibility
All FLEX 24V batteries, chargers and tools
Warranty
5-year end-to-end
In the box
Angle grinder with paddle switch, grinding guard, 2 flanges, wrench, anti-vibration handle
Not included
Battery and charger (sold separately)

Questions and answers

Is this grinder variable speed?
Yes, it has four speed settings and a no-load speed of 10,000 RPM.
What is included in the box?
The box includes the grinder, grinding guard, two flanges, a wrench, and an anti-vibration handle. Battery and charger are not included.
Does it have anti-kickback protection?
Yes, it features anti-kickback protection, restart protection, and overload protection.
What size discs does it use?
It accepts 4-1/2-inch to 5-inch discs with a 5/8-inch arbor.
Is it compatible with all FLEX 24V batteries?
Yes, it works with FLEX 24V batteries. The FLEX Advantage promises unmatched power and runtime.
Where is the FLEX FX3171A-Z 5" Variable Speed Angle Grinder cheapest?
At VM Hardware, for $138.00, as of our latest check.
What do buyers say about the FLEX FX3171A-Z 5" Variable Speed Angle Grinder?
Rated 5 out of 5 from 3 ratings.
Where can I buy the FLEX FX3171A-Z 5" Variable Speed Angle Grinder?
23 stores we checked sell it, including Way Source, Tiger Supplies, Thieman Quality Products, VM Hardware, CSC - Contractor Supply Company.

Stores we've priced the FLEX FX3171A-Z 5" Variable Speed Angle Grinder at

  • Acme Tools deals and prices
  • Fasteners Tool Outlet deals and prices
  • Ohio Power Tool deals and prices

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