# Flex FX3171A-Z 24V 5 in. Variable Speed Brushless Angle Grinder with Paddle Switch (Tool Only): specs and price

**Price (US):** $199 (Current retail at Ohio Power Tool ($199.00, tool only); FLEX product page does not display MSRP.), as of 2026-07-10. Among the 18 angle grinders we track it is #14 cheapest of 18; category median $149.
**Brand:** Flex
**Deskmark:** Bronze Deskmark — pay-blind category standing 47/100, #11 of 17 in class (independent, computed from sourced data, never for sale).

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $199 |
| Brand | Flex |
| Disc size (in) | 5 in |
| Power source | cordless |
| Amps or voltage | 24 V |
| Max (rpm) | 10000 |
| Brushless | Yes |
| Switch type | paddle |
| No volt release | — |
| Weight (lb) | 4.2 |

## Where it stands

At $199, the Flex FX3171A-Z 24V 5 in. Variable Speed Brushless Angle Grinder with Paddle Switch (Tool Only) is #14 cheapest of the 18 angle grinders we track, where the median is $149. On the spec sheet, its disc size of 5 in is above the median of the 18, its weight of 4.2 lb is below the median of the 17, and its max of 10000 rpm is at the median of the 18.

## What reviewers say

Only one whitelisted tester, Pro Tool Reviews, hands-on tested this exact Flex FX3171A variable-speed paddle-switch 5-inch grinder (scored 9.5/10). PTR praised its class-leading power, slimmer ergonomic handle and easy one-step guard adjustment, but flagged the lack of a fast electronic brake. (Based on 1 review, 1 lab-tested, 2021-05-18.)

Praised: Impressive power and fast material removal for the 5-inch class; Slimmer, ergonomic handle with secure overmolded grip; Easy, one-step guard adjustment and anti-kickback sensor.
Flagged: No fast electronic brake; wheel coasts ~2.5s after release; Noticeably easier to bog down the wheel on the smaller 2.5Ah battery.
Disagreement: Only a single whitelisted hands-on review exists, so no cross-source comparison is possible; PTR's 9.5/10 verdict stands unchallenged.
Sources: Pro Tool Reviews (2021-05-18, protoolreviews.com)

## Frequently asked questions

**What do reviewers say about the Flex FX3171A-Z 24V 5 in. Variable Speed Brushless Angle Grinder with Paddle Switch (Tool Only)?**

Only one whitelisted tester, Pro Tool Reviews, hands-on tested this exact Flex FX3171A variable-speed paddle-switch 5-inch grinder (scored 9.5/10). PTR praised its class-leading power, slimmer ergonomic handle and easy one-step guard adjustment, but flagged the lack of a fast electronic brake. Praised: Impressive power and fast material removal for the 5-inch class; Slimmer, ergonomic handle with secure overmolded grip; Easy, one-step guard adjustment and anti-kickback sensor. Flagged: No fast electronic brake; wheel coasts ~2.5s after release; Noticeably easier to bog down the wheel on the smaller 2.5Ah battery. (From 1 tester review, 1 lab-tested.)

**How much does the Flex FX3171A-Z 24V 5 in. Variable Speed Brushless Angle Grinder with Paddle Switch (Tool Only) cost?**

The Flex FX3171A-Z 24V 5 in. Variable Speed Brushless Angle Grinder with Paddle Switch (Tool Only) has a US price of $199 (Current retail at Ohio Power Tool ($199.00, tool only); FLEX product page does not display MSRP.), as of 2026-07-10.

**How does the Flex FX3171A-Z 24V 5 in. Variable Speed Brushless Angle Grinder with Paddle Switch (Tool Only) compare on price?**

At $199, the Flex FX3171A-Z 24V 5 in. Variable Speed Brushless Angle Grinder with Paddle Switch (Tool Only) is #14 cheapest of the 18 angle grinders we track, where the median is $149.

**What are the Flex FX3171A-Z 24V 5 in. Variable Speed Brushless Angle Grinder with Paddle Switch (Tool Only)'s key specs?**

Flex FX3171A-Z 24V 5 in. Variable Speed Brushless Angle Grinder with Paddle Switch (Tool Only) (Flex): disc size in 5 in, power source cordless, amps or voltage 24 V, max rpm 10000, brushless Yes. Full sourced spec sheet verified 2026-07-10.

Source: https://www.flexpowertools.com/5-in-variable-speed-angle-grinder-with-paddle-switch-kit-fx3171a-1c/ (flexpowertools.com, accessed 2026-07-10)
Corroboration: https://www.ohiopowertool.com/flex-fx3171a-z (accessed 2026-07-10)
Canonical: https://frontdeskreview.com/product/angle-grinders/flex-fx3171a-z/
Cite: Per The Front Desk Review, the Flex FX3171A-Z 24V 5 in. Variable Speed Brushless Angle Grinder with Paddle Switch (Tool Only) price of record was $199 as of 2026-07-10 — https://frontdeskreview.com/product/angle-grinders/flex-fx3171a-z/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl