Tools Needed For Automotive Body Repair
Article by Mark Trotta
Automotive body repair requires specialized tools, which include a hammer and dolly set, a variety of sanding boards and blocks, and dual-action (DA) sander. Also useful are sheet metal snips, slide hammer, stud welder dent puller, and an angle grinder.
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Hammer And Dolly
At the core of automotive metalwork is the hammer and dolly, and it's not the same technique as hammering nails into wood!
Body hammers are light in weight and have a rounded face. It's all about precision and moderation.
The majority of hammer and dolly work is to reverse a dent. To do this, you need to have access to both sides of the panel. The dolly acts as a "backup" for the hammer motion.
There are dozens of sizes and variations of hammers and dollies. Good tools last a lifetime - I've had mine for over 30 years.
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Cutting Sheet Metal
Tin snips are the most economical way of cutting sheet metal patches and panels. They are available in straight, left-hand, and right-hand versions.
Hand-held nibblers also work well on small panels, but electric shears will save time on large or multiple panels.
Read: 9 Ways Cut Sheet Metal
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Spot Weld Cutter
Cutting spot welds is not a quick or easy job. They should be cut out slowly with a spot weld cutting tool.
When cutting a spot weld, make a small dimple beforehand. This gives a spot for the pin of the tool to stay centered. And use cutting oil (WD40 will work).
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Dual-Action Sander
The D-A (dual-action) sander is a must-have for removing paint and sanding down body filler. The dual orbital motion helps prevent scratching. It's primary use is to "feather", or fan out the area around body filler. 150- or 220-grit sandpaper is commonly used.
Read: Best Air Tools For Automotive Restoration
When using a D-A sander, keep it flat to the surface and don't press down too hard. Let the sander do the work. Don't forget to wear a respirator.
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Sanding Boards And Blocks
When a DA sander is too large or will be too aggressive for the repair area, a Bodyman reaches for a proper-sized sanding board. For tight and curvy places, there are sanding blocks.
Dura-Block sanding blocks come in several sizes and shapes for various sanding needs. There is flex in the longer blocks that allow working with different contours.
These sanding blocks work best with 2-3/4" 3M "Stikit" rolls.
TIP: To properly sand different shapes and contours of body panels, keep an assortment of sanding blocks. They can be used for both wet and dry sanding.
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Angle Grinder and Attachments
Although mainly used for body work (like grinding down welds), 4-1/2" angle grinders have many other automotive uses. With a cut-off wheel attachment, they can cut off rusted muffler brackets or shorten bolts.
Read: Best Angle Grinder For Automotive
Read: Angle Grinder Attachments For Automotive Repair
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Slide Hammer
The many uses for a slide hammer include pulling out dents and repairing body panels. The tool has a long round shaft with a sliding hammer weight, to produce force without actually striking the panel.
Shop: GearWrench Slide Hammer Puller Set
GearWrench offers a nice slide hammer kit which includes five different components for different pulling uses. Included is a screw and hook attachment needed for dent pulling, as well as two flange adapters for pulling rear axles.
The slide hammer weight is 5-1/2 pounds and the rod is 5/8-18 thread.
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HVLP Paint Systems
If you've never painted a car before, an HVLP turbine system is ideal for first-timers. You'll actually have an advantage; they'll be no relearning curve from a conventional spray system.
Read: Best HVLP Paint System For Automotive
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