1/2 Impact Wrench

A 1/2 impact wrench is one of those tools you feel instantly when you pull the trigger. At ArcCaptain, this collection is built for welders, fabricators, and metal workers who need fast torque, clean control, and zero excuses on the job.

From breaking loose seized bolts to tightening fasteners on steel frames, our 1/2 impact wrench lineup delivers the strength, balance, and reliability that shop and field work demand.

Designed to live next to your welder, these tools fit right into welding workflows. Think fewer delays, stronger joints, and less strain on your hands after long hours around steel.

Torque That Actually Keeps up With Fabrication Work

These 1/2 impact wrenches are made to handle stubborn fasteners without drama. You get confident power where manual tools slow you down.

Break Loose Rusted and Over-Torqued Bolts

High torque output helps remove bolts exposed to heat, slag, and corrosion common in welding environments. You spend less time fighting hardware and more time building.

Consistent Tightening for Steel Assemblies

Controlled impact action reduces uneven clamping force. That matters when aligning brackets, frames, and welded components.

• High breakaway torque for stuck fasteners
• Stable fastening on thick steel parts
• Less rework from loose or uneven bolts

Built for Welders Who Work Long Days

Comfort and durability matter when tools are used daily around heat, sparks, and metal dust.

Balanced Design That Saves Your Wrists

A compact body and smart weight balance reduce fatigue during overhead or repetitive fastening. Your hands last longer through the shift.

Tough Housing for Shop and Site Abuse

These tools are designed to handle drops, vibration, and dirty conditions common in fabrication shops and job sites.

• Reduced hand strain during extended use
• Strong outer shell for harsh environments
• Reliable performance around metal debris

Cordless Freedom Without Losing Muscle

Short intro: Mobility is everything when moving between weld tables, trailers, and outdoor repairs.

No Cords, No Air Hoses, No Limits

Cordless operation lets you work anywhere without setting up compressors or power lines. Perfect for field welding and mobile fabrication.

Fast Response With Brushless Efficiency

Efficient motors deliver strong torque while managing heat and battery use. You get steady power without sudden drop-offs.

• Easy movement between work areas
• Clean setup for mobile welding jobs
• Efficient power delivery under load

One Tool That Fits Many Shop Tasks

A 1/2 impact wrench is more than a bolt remover. It becomes part of your core welding toolset.

Works Across Fabrication and Repair Jobs

From welding table assembly to trailer maintenance, this size handles most common fasteners used in metalwork.

Pairs Well With Welding Workflows

Use it before welding to prep joints and after welding for final assembly. It keeps your workflow smooth and fast.

• Versatile socket compatibility
• Ideal for fabrication, repair, and maintenance
• Saves time before and after welding

Why a 1/2 Impact Wrench Makes Sense for Welders

This size hits the sweet spot between raw power and daily usability. A 1/2 drive handles larger bolts without being bulky. It is strong enough for steel work but still easy to control.

Trusted Choice in Metal Shops

This drive size is commonly used in fabrication, automotive welding, and structural work because it simply works.

• Strong enough for heavy fasteners
• Easier to handle than larger drives
• Ideal balance for shop and field use

Explore More ArcCaptain Collections

• Stick Welding Equipment– Rugged machines and accessories designed for outdoor, dirty, and heavy steel welding.
• Tools for Welders– Essential shop tools that support cutting, fastening, prep, and cleanup.
• Arc Welder – Portable and powerful welding machines built for fabrication and repair work.
• Welding Protective Gear– Helmets, gloves, and apparel that keep you safe while you work.

FAQs on Impact Wrenches

What should you not do with an impact wrench?

You should not use an impact wrench for precision tightening where exact torque is required. Impact tools can easily over-tighten fasteners and damage threads or parts. They should also not be used on delicate materials or small fasteners that can snap under sudden force.

What is the 20 100 rule for torque wrenches?

The 20–100 rule means a torque wrench is most accurate when used between 20 percent and 100 percent of its rated torque range. Using it below that range can lead to inaccurate readings. This rule helps maintain consistent and reliable torque results.

Why can't you use regular sockets with an impact wrench?

Regular sockets are not designed to handle the sudden force of impact tools. They can crack or shatter under high torque, which is dangerous. Impact-rated sockets are thicker and made to absorb shock safely.

What are common problems with impact wrenches?

Common issues include loss of power, worn internal parts, and battery or air supply problems. Dirt and metal dust can also affect performance over time. Regular cleaning and proper use help extend tool life.

Does leaving a torque wrench set ruin it?

Yes, leaving a torque wrench set at a high value can weaken its internal spring over time. This leads to inaccurate torque readings. It is best to reset it to the lowest setting after each use to maintain accuracy.