Anyone working with metal should be aware of these two tools. They make finishing metal a smoother experience. I prefer these two attachments over composite disks, belt sanders, or orbital sanders.
I learned about them as a construction worker while prepping process pipe for welds on oil refineries. Both tools are standards in the steam fitting trade. I’ve since used them on robot creations, blacksmith projects, and anywhere else metal is involved.
Flap disks are more forgiving than standard composite grinding disks. (Use grinding disks and stones to grind, but use the flap attachments to finish.) Flap disks allow the user to treat a work piece like a sculptor. There’s a sense of touch and shaping involved. Less likely to gouge while still smoothing at a fast rate.
The flapper wheel has similar qualities but gets inside tight spots and is excellent on irregular surfaces. Attach it to an end grinder, drill, or set one up on a bench grinder.
Here are before-and-after photos of a railroad spike knife that was ground with a flap-disk. (Actually it is the un-ground side of the knife vs. the ground side). Doing this took less than 2 minutes. -- Aaron Nipper
Flap Wheels and Flap Disks: Around $10
The most recent guest on the Cool Tools Show (hosted by Kevin Kelly and me) is Ziya Tong, host and producer of the television program Daily Planet, Canada’s daily science show, which airs on Discovery Canada. Before that, Ziya was host and field producer for Wired Science, produced in conjunction with Wired Magazine and NOVA […]
https://www.youtube.com/watch?v=2OEXRFup0h0 After doing some digging, why not relax with some charcuterie and vodka? A knife acts as a cap for a handle flask on this clever Russian shovel.
[soundcloud url=”https://api.soundcloud.com/tracks/200688868″ params=”color=ff5500″ width=”100%” height=”166″ iframe=”true” /] Over at Cool Tools we interviewed my good friend John Edgar Park, who is one of the most interesting people I know. When he is not combing the streets for street sweeper blades to turn into picklocks, or practicing impossible yoga positions, or roasting his own coffee, he’s […]
The Lytro Illum dares to be different, boasting even more robust features than its first generation predecessor and a sleek design reminiscent of professional DSLRs. What’s so cool about it? Most cameras capture the position of light rays, producing a statoc 2D image.
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