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
Over at Cool Tools, Kevin Kelly and I interviewed Joshua Schachter, the creator of the social bookmarking site, Delicious, the creator of GeoURL, and the co-creator of Memepool. He’s a fascinating person! Subscribe to the Cool Tools Show on iTunes | RSS | Transcript | Download MP3 | See all the Cool Tools Show posts on a single page Show notes: Othermill ($2,199) […]
Rose Eveleth is a journalist who covers how humans tangle with science and technology. She’s the host and producer of Flash Forward, a podcast about the future, and has covered everything from fake tumbleweed farms to sexist prosthetics. Kevin Kelly and I interviewed Rose about her favorite tools on the Cool Tools podcast. Subscribe to […]
Rick Lax created the TV show “Wizard Wars” and has written several books on deception. He’s a non-practicing lawyer, a former MENSA member, and now spends his time creating tricks for other magicians and for Penguin Magic, the biggest magic retailer in the world. Subscribe to the Cool Tools Show on iTunes | RSS | Transcript | Download MP3 | See all the […]
3D printing has been one of those “next big thing” innovations among early adopters and the tech circle in-crowd for a few years now. However, the prospect of creating your own three-dimensional objects is still in its relative infancy with the general public. While the idea itself is fascinating to most, high prices and the […]
White hat hackers get paid to find holes in their own employers’ online systems, and plug those holes before they become serious security risks. It’s a job that pays handsomely…mostly because few job candidates, even experienced IT professionals, have the skills to scamper over firewalls and infiltrate the deepest recesses of a battle-tested network. But […]
Why buy one of those expensive and confusing universal remotes, clogged with enough buttons to launch a space shuttle, when you could accomplish the same electronic control right on your favorite mobile device? The Blumoo Universal Remote, now just $52.99 in the Boing Boing Store, harnesses the audio power of all your household equipment right […]