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ErgoStar Hex Set
To look at them you would not think there was anything special about these Wiha hex keys; they are standard hex on one end and ball hex on the other. But the ball ends of these particular keys have a “magic ring” that grips fasteners from inside without the use of magnets. Pop the key into the fastener and the two stay connected until you decide to pop it back out.
Even better, the case is designed so that twisting one key cause all the others to pivot out, making it possible to remove any given key without having to move the larger ones above it.
The keys are available in metric, inch, and Torx.
Wiha Drivers and überPliers
After the first video, watch the second and third videos to see the 32-piece infinitely adjustable screw/nut driver set and the “high-leverage bi-cut pliers.”
For more information: www-us.wera.de
Held each May in Las Vegas, The National Hardware Show is where buyers from hardware stores, lumber yards, and home centers go to see the latest and greatest tools and products being pitched by the companies that make them.
The 2016 show was particularly good, with more interesting new tools and products than I have seen in years past. Some recently came out, some are scheduled for release later this year, and some are concepts in search of buyers—years away from being produced or fated to never be produced at all.
This series of articles lets you peek at what you would have seen if you had been able to go to the show, which is open only to members of the NRHA (North American Retail Hardware Association) and select media.
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Made in 1947 and 1948 by the Air-O-Supply Model Manufacturing Co. in Hawthorne, California, USA.
This engine is one of several short lived Post-War efforts by US manufacturers at marketing diesels to North American aero modellers. The perfection of the Arden ‘hot coil’ glow plug in 1948 effectively ended the possibility of diesel model engines gaining a serious toe-hold in that region. The US enthusiasts threw away their batteries, contacts and coils and wholeheartedly embraced glow ignition as the preferred model engine format.
It is an exceptionally well made engine. It features a hardened steel piston lapped and fitted in a mild steel cylinder. Cooling fins are machined integral with the cylinder promoting low distortion and effective heat dissipation.
Despite at first glance looking like a fixed compression engine, it does have a contra-piston. This is adjusted by a compression adjustment grub screw recessed on top for insertion of an allen key. Very neat.
Neither needle nor compression settings are critical and the engine is very easy to set.
Performance is steady though power output is gentle, as is to be expected on an engine of this vintage featuring piston port intake and single transfer port design.
Propeller fitted is a 12 x 6 Master Airscrew GF3. Maximum RPM is about 6,400.
Fuel mix is ‘jungle juice’; i.e. 3 equal parts of castor oil, di-ethyl ether and kerosene.
Further information on these rare engines may be found here:
https://www.modelenginenews.org/ad/aerod.html