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Car battery and digital battery tester with disconnected red and black clamps on a workshop bench.

How to Use a Car Battery Tester

Sep 11, 2026NTWBattery Tools

Learn how to use conductance, load and multimeter battery testers safely, read Good, Recharge and Replace results, and check starting and charging systems.

Pneumatic impact wrench, air ratchet, die grinder and air hose on a workshop bench.

Air Tool CFM Chart: Air Impact Wrench and Pneumatic Tool Requirements

Sep 9, 2026NTWAir Tools

Compare typical CFM, PSI, use patterns, and hose sizes for air impact wrenches, ratchets, grinders, sanders, hammers, and other air tools.

Stationary air compressor and enclosed abrasive blasting cabinet in a workshop.

Air Compressors for Sandblasting: CFM, PSI and Nozzle Size Guide

Sep 7, 2026NTWAir Compressors

Size an air compressor for sandblasting by nozzle, CFM and PSI. Compare pressure blasters with siphon cabinets, then account for wear and reserve.

Tool Chest vs. Roller Cabinet: Which Should You Choose?

Aug 31, 2026NTWTool Storage

Tool Chest vs. Roller Cabinet: Which Should You Choose? A tool chest is an upper or benchtop drawer unit that organizes smaller hand tools without using additional floor space. A roller cabinet is a floor-standing drawer unit on casters that usually offers more room for heavy tools, mobility around the shop, and a usable top

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Automotive Paint Gun Nozzle Size Chart

Aug 31, 2026NTWPaint & Body Tools

Automotive Paint Gun Nozzle Size Chart Choosing an automotive paint gun nozzle starts with the coating, not the gun. Common starting ranges are 1.2 to 1.4 mm for most sealers, basecoats, and clearcoats; 1.6 to 1.8 mm for primer surfacer; 1.8 to 2.2 mm for high-build primer or primer filler; and 2.0 to 2.5 mm

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Socket Drive Size Guide: How to Choose the Right Drive

Aug 25, 2026NTWHand Tools

Socket Drive Size Guide: How to Choose the Right Drive The right socket drive size depends on the fastener, available space, required leverage, and tool being used. A 1/4-inch drive is compact and well suited to smaller fasteners. A 3/8-inch drive is the versatile choice for a broad range of automotive and maintenance work. A

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Modular Tool Storage Systems: How to Choose the Right Setup

Aug 25, 2026NTWTool Storage

Modular Tool Storage Systems: How to Choose the Right Setup Modular tool storage systems combine compatible boxes, drawers, organizers, bags, rolling bases, and mounting accessories into one expandable platform. The right system can make tools easier to organize, protect, move, and access, but the best choice depends on how and where you work. If your

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Air Compressor Repair: Troubleshooting 7 Common Problems

Aug 17, 2026NTWAir Tools

Air Compressor Repair: Troubleshooting 7 Common Problems An air compressor that will not start, build pressure or hold air does not always need a major repair. Many problems trace back to the power supply, a loose fitting, an open drain, a clogged intake filter or a worn hose. Start with the simple checks, follow the

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Floor Jack vs Bottle Jack: Which One Should You Use?

Aug 17, 2026NTWLifting Equipment

For most routine work in a home garage, a floor jack is the more convenient choice. Its low body fits under many passenger vehicles, its long handle makes positioning easier, and its broad footprint feels steady on a smooth shop floor. A bottle jack is usually the better fit when compact storage, high load ratings,

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What Is an Air Hammer Used For? A Practical Guide to Jobs and Bits

Aug 11, 2026NTWAir Tools

What Is an Air Hammer Used For? A Practical Guide to Jobs and Bits An air hammer is a handheld pneumatic tool used to cut, separate, drive, scrape, chip, and shape material with rapid linear blows. Common jobs include freeing seized automotive parts, separating ball joints, cutting exhaust tubing and sheet metal, removing rivets and

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