The FLEX FX1431-Z 1/2" Compact Impact Wrench (Tool Only) puts big torque in a compact, lightweight package—perfect for tight spaces and long days at the shop. Designed for automotive pros and framing crews who refuse to compromise on power or portability.

Key Features & Design

• Compact and lightweight — 38 percent lighter than the FX1451, with a 4.9 in length and 2.6 lb tool weight, built to conquer hard-to-reach spaces without fatigue.
• High power — 300 foot-pounds of fastening torque and 450 foot-pounds of nut-busting torque for demanding jobs.
• Smart control modes — Bolt Auto Stop Mode prevents overtightening, breaking, or stripping; Bolt Removal Mode stops the tool when the bolt is loosened; Screw Mode delivers faster speed for wood-driving applications.
• Illumination for dark work — 360-degree LED with five adjustable brightness settings to light up tight corners.
• FLEX Stacked Lithium Advantage — 200% more power with 24V Stacked Lithium, 300% longer runtime with THERMA-TECH+ heat management, 100% faster charging, and 100% cross-compatibility with all FLEX 24V tools and chargers.
• Cross-compatibility — Compatible with all FLEX 24V batteries, chargers, and tools for a seamless workflow.
• Ergonomics — Ergonomic design and soft-grip handle with a variable speed trigger for ideal balance, comfort, and total control.
• Warranty — FLEX Limited Lifetime Warranty when registered within 30 days of purchase at registermyFLEX.com through December 31, 2024.

Specs

• Brushless: Yes
• Process Control: Yes
• Metal Gearbox: Yes
• LED Light: Yes
• Pre-Light: Yes
• After-Glow: Yes
• Halo Light: Yes
• Electric Brake: Yes
• Soft Grip: Yes
• No Load Speed: 0-1,000/1,800/2,700 rpm
• Max. Impact Rate: 3750
• Fastening Torque: 300 ft lbs (406 Nm)
• Nut-Busting Torque: 450 ft lbs (610 Nm)
• Torque Setting: 3
• Anvil Size: 1/2 in
• Anvil Type: Square - Friction Ring
• Tool Length: 4.9 in
• Tool Weight: 2.6 lb