18 June 2018


Fiskars Take-Apart Shears

Designed for tasks all over the house

I don’t consider myself a great cook, but I’ve found that for a multitude of kitchen activities, scissors are important. Whether for cutting cooking twine, small bones or a chicken breastbone, they can be very useful. Normal office scissors don’t have the right length of blade and the joint can harbor germs and food residue.

The Fiskars shears are one of a number of scissors specially made for the kitchen. They feature shorter, stainless steel blades and a take-apart joint for cleaning. However, these shears are one of the least expensive, yet still reliable pairs. — AK


Shoot, we keep pairs of these in the kitchen, office & home desk drawers and my tool bag. These are the epitome of a Cool Tool, perfectly functional, simple, clean and comfortable. — Wayne Ruffner


(This is a Cool Tools Favorite from 2006 — editors)

17 June 2018


3M SandBlaster Ultra Flexible Sanding Sheets

Better than sandpaper

It’s time for another Cool Tools review. This time we’re looking at this Ultra-Flexible sandpaper by 3M. I got four sheets of this for around $7 on Amazon, which is kinda pricey for sandpaper but I’ll show you why it’s special.

We’re all familiar with sandpaper. Sometimes, there’s just no substitution for sanding something by hand.

These Ultra Flexible sheets aren’t paper at all. The grit is backed by a smooth plastic film that feels like packing tape, but stretchy. It is the limpest, floppiest sandpaper I’ve ever used. And honestly it weirded me out when I first tried it. It’s a very different feel.

But there are some huge advantages. The packaging states that it lasts 15 times longer than conventional sandpaper, but it doesn’t say why.

One reason is that it doesn’t rip. You could destroy it if really try, but the plastic back would rather stretch than rip.

It also doesn’t crease. I can fold it, I can roll it up, I can form it around complex shapes, I can crinkle it up into a little ball if I want — but it just goes back to being this floppy sheet of sandpaper. So it’s very versatile.

It can also be used wet or dry, since there’s nothing to get soggy. The flexibility makes it resistant to clogging. And you can shake them out like a rag, or whip them on the table if you need to knock anything loose.

They’re cool. I’m glad I have them. They come in Medium, Fine, and Extra Fine grit. I’ve been keeping a Medium sheet rolled up at my workbench that I use almost like a sanding rag. Mark from Cool Tools has been using these for sanding the wooden spoons that he whittles.

3M SandBlaster Ultra Flexible Sanding Sheets:

-- Donald Bell 06/17/18

(Cool Tools has a YouTube channel with many more tool reviews — editors)

17 June 2018


Mother American Night/CloudMounter/DonorsChoose

Recomendo: issue no. 99

Barlow’s stories
When I took LSD, I got it from John Perry Barlow. Barlow was a famous internet pioneer and a veteran hippy. Barlow was also a semi-politician, pundit, writer, and a most remarkable story teller. He died recently but left an amazing fast-paced memoir behind, which I thoroughly enjoyed. He may not be everyone’s cup of tea, but I found moments of profundity in his autobiography Mother American Night, a series of tales which I will happily re-read. — KK

Use cloud storage like a local drive
I use several cloud storage services. The easiest way to access them is with CloudMounter, a $49 Mac utility that mounts OneDrive, Google Drive, Amazon S3, Dropbox, and others as local hard drives on my desktop. Setup was painless and it works flawlessly. — MF

Equipping students
Few things in life are as satisfying as getting handwritten thank-you notes from school kids for helping them learn. DonorsChoose is a non-profit that features thousands of public school teachers seeking basic school supplies, or extra gear for special projects (rocket kits for science!). The teachers post their pitch. You choose a project. When it gets fully funded they post verification pictures of the kids using the resource which your funds provided, and later they’ll send you a fistful of amazingly detailed (and endearing) letters from the students themselves. You’ll want to do this. — KK

Motorized corner desk
I am very happy with my IKEA standing desk. I bought it because I needed an affordable corner desk for my small home office and the BEKANT sit/stand desk ($529) was half the price of other adjustable height corner desks on the market. There’s different sizes and color combos you can choose from and the desk comes with a 10-year limited warranty. — CD

Bamboo gardening gloves
I bought these $7 gardening gloves for pulling up roots in my yard. They have a textured, latex grip that kept the roots from sliding out of my hand. They’ve held up well after many hours of hard work. — MF

Keep your hair in place while sleeping
I use my satin pillowcase ($10) on nights before “no-wash” hair days. The silky pillowcase prevents my hair from getting tangled up or matted so that I barely have to brush it or style it. Beauty blogs claim that these pillowcases also prevent face wrinkles while you’re sleeping, which would be an added bonus if true! I just like how it makes my hair look and how cool and soft it feels. — CD

-- Kevin Kelly, Mark Frauenfelder, Claudia Dawson 06/17/18

16 June 2018


Rechargeable Lead Acid Battery

cheap, durable, rechargeable power source

In this Cool Tools video review I’m going to show you why it’s handy to have a 12v, SLA battery around.

The first time I encountered a sealed lead acid battery was in a Power Wheels kids ride-on car. Instead of having something like this take 100 D-cell batteries that have to be thrown away, the manufacturer mercifully includes a dedicated battery that can be recharged over and over again.

Like your basic car battery, these are an old school rechargeable technology. They’re sealed up completely, so there’s no major risk of spilling or chemical exposure unless you really work to crack these open.

The major downside to these is that they’re heavy. Compared to the LiPo and Lithium Ion packs in most of our gadgets, these things weigh a ton. But they come in a range of shapes and sizes, and a more standard range of voltages.

You do need to exercise some caution not to bridge the terminals accidentally, or they could spark, just like any battery. I’ll often store these with gaffer tape across them as insulation.

They’re very simple to recharge. I have this $17 Battery Buddy charger that I can just clip on and plug in and it charges automatically. Fancier RC battery chargers will typically have a setting for SLA or Pb too.

Now, here’s why I consider these a tool. I have used these multiple times to make plug-in 12v appliances portable. If you have a thing that you typically plug in using an AC adapter, that adapter is often doing the work to translate 110v AC into 9 or 12 volts DC. It will usually say right on the adapter.

For example, my family has this air mattress we use for camping and it came with an inflator that works off an AC adapter or car cigarette lighter adapter. But because I like inflating the bed in the tent, I just wired this up to use with the 12v battery by exposing the wires and putting crimp spade connectors on it.

As another example, I had this portable cathode ray TV that took 8 C-cell batteries or a 12v AC adapter. I just wired a barrel jack cable with crimp spade connectors and glued the battery to the bottom of the TV along with a Raspberry Pi that autoplays videos. It’s a little chunky, but it’s portable and rechargeable.

So that’s a look at SLA batteries. They’re heavy, but they’re cheap, durable, rechargeable and an easy hack for stuff that runs on 12 volts.

-- Donald Bell 06/16/18

16 June 2018


Sharpie Twin-Tip

Fine point performance

Sharpie markers are well-known for being indelible, particularly on plastic, glass and metal surfaces. Folks in labs, movie sets, and hospitals who need to mark things permanently use Sharpies. If the ink goes on, it won’t come off. What’s special here is that the other tip of these pens is an ultra-fine point Sharpie, fine enough to write like a ball-point pen – but permanently — when you need to. The “industrial” version of Sharpie ink will even resist chemicals and scrubbing. Since more writing surfaces seem to be plastic-like, I find we use Sharpies all the time now.

-- KK 06/16/18

15 June 2018


Becky Stern, Content Creator at Instructables

Cool Tools Show 127: Becky Stern

Becky is a Content Creator at Instructables, and part time faculty at New York’s School of Visual Arts Products of Design grad program. Making and sharing are her two biggest passions, and she’s created hundreds of free online DIY tutorials and videos, mostly about technology and its intersection with crafts.

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:

Tinkercad Circuits
In addition to its free 3D modeling tools, Tinkercad now has a circuit simulator for prototyping with parts and code. I’ve been working with the Tinkercad team recently to help create and organize their Arduino curriculum, and I’m impressed with how useful it is as a teaching tool and how fun and fast it is to “wire up” a quick idea. Once you’re logged in to Tinkercad you can also follow along with my interactive lessons which guide you through using the editor and learning Arduino at the same time.

Parrot Teleprompter ($98) with Bluetooth remote ($20)
This thing attaches to the end of your camera lens and holds a phone running a teleprompter app. I drag my video scripts into a dropbox folder and they are automatically slurped into the Parrot app. The bluetooth remote makes it easy to redo a take or adjust the speed of the playback myself while recording. It dramatically decreases the time it takes to both film and edit scripted tutorial videos.

Silicone-tipped Solder Sucker ($24)
When I worked at Adafruit, I got to try out and show off new products of theirs all the time. One of my favorite new tools that I still use today is this Japanese solder sucker. I remember struggling to undo big soldering mistakes when I was first learning, melting the tips off the cheap RadioShack solder suckers and burning myself on copper braid. This sucker’s got a heat-resistant silicone tip that you can press right up against the hot soldering iron tip to get a good seal to slurp the solder once it’s molten. Also the sounds it makes are very satisfying. It may be more expensive than its alternatives but provides a big boost in performance and luxury handling. In that way it feels like driving a fancy car.

Many of my design grad students are able to catapult their single semester of simple Arduino into complex product prototype functionality by integrating IFTTT. I teach folks online how to use it with an ESP8266 microcontroller board and adafruit.io in my free Instructables Internet of Things class, but you can also use it with hardware from Particle, littleBits, Raspberry Pi as well as a handful of ‘single button’ devices you can find if you scroll through the expanded list of services on IFTTT’s site.

Also mentioned:
Becky Stern’s Maker videos on Youtube
I recently made a leather wallet, a foot pedal shutter remote for my camera, a humidity-controlled storage and dispenser box for 3D printer filament, and a bluetooth device for coaching your knife sharpening angle.

We have hired professional editors to help create our weekly podcasts and video reviews. So far, Cool Tools listeners have pledged $342 a month. Please consider supporting us on Patreon. We have great rewards for people who contribute! – MF



img 06/14/18

Blackwing 602 Pencil

Wood pencil with a large, blocky eraser

img 06/13/18

High Volume Low Pressure Sprayer

Spray thin materials such as stains, sealers, urethanes, varnishes, and lacquers

img 06/13/18


Coffee Syringe

img 06/12/18

Dash Rapid Egg Cooker

Foolproof hard boiled eggs

img 06/12/18

Digital Servo Tester Controller with Voltage Display

Cheap board gives you a quick way to play around with servos

See all the reviews


img 12/20/10

Park Team Race Stand

Essential bike maintenance tool

img 04/2/18

Mosquito Netting

Cheap worry-free sleeping

img 10/28/08

Ready Meals

Emergency hot meals

img 12/18/15

Bose QC20 Headphones

Best all around noise cancelling earphones

See all the favorites



Cool Tools Show 127: Becky Stern

Picks and shownotes

Cool Tools Show 126: Charles Platt

Picks and shownotes

Cool Tools Show 125: Tod E. Kurt

Picks and shownotes

23 February 2017


Cool Tools is a web site which recommends the best/cheapest tools available. Tools are defined broadly as anything that can be useful. This includes hand tools, machines, books, software, gadgets, websites, maps, and even ideas. All reviews are positive raves written by real users. We don’t bother with negative reviews because our intent is to only offer the best.

One new tool is posted each weekday. Cool Tools does NOT sell anything. The site provides prices and convenient sources for readers to purchase items.

When Amazon.com is listed as a source (which it often is because of its prices and convenience) Cool Tools receives a fractional fee from Amazon if items are purchased at Amazon on that visit. Cool Tools also earns revenue from Google ads, although we have no foreknowledge nor much control of which ads will appear.

We recently posted a short history of Cool Tools which included current stats as of April 2008. This explains both the genesis of this site, and the tools we use to operate it.

13632766_602152159944472_101382480_oKevin Kelly started Cool Tools in 2000 as an email list, then as a blog since 2003. He edited all reviews through 2006. He writes the occasional review, oversees the design and editorial direction of this site, and made a book version of Cool Tools. If you have a question about the website in general his email is kk {at} kk.org.

13918651_603790483113973_1799207977_oMark Frauenfelder edits Cool Tools and develops editorial projects for Cool Tools Lab, LLC. If you’d like to submit a review, email him at editor {at} cool-tools.org (or use the Submit a Tool form).

13898183_602421513250870_1391167760_oClaudia Dawson runs the Cool Tool website, posting items daily, maintaining software, measuring analytics, managing ads, and in general keeping the site alive. If you have a concern about the operation or status of this site contact her email is cl {at} kk.org.