Probably close to 20 years ago, Matco released their line of Proswing ratcheting wrenches. One version (my favorite ratcheting wrench) consisted on a standard length double box end ratcheting wrench with a fixed 15 degree offset boxed end on one side, and a zero offset 72 tooth ratcheting boxed end on the other side. the first generations were made in the USA probably by Armstrong. Later generations were upgraded to spline boxed ends and 90 tooth ratcheting action sourced by KABO in Taiwan.
I believe MATCO discontinued these wrenches. Cornwell offers them under their Blue Power line:
Sizes: 8mm-19mm. 72-tooth ratchet design provides 5° handle swing. 12-point box ends. Full polish, chrome plated finish. Packaged in a bi-color EVA foam organizer for easy storage.
webcat.cornwelltools.com
What's great about these wrenches is that they are standard length. other versions such as Gearwrench's Gearbox series are often just too long to use in some applications.
SP Tools also offers this locking flex head series:
SP Tools Wrenches use Chrome Vanadium Steel (Cr-V) Plating for high strength, durability, and ease of cleaning. 0° offset box end. 72 teeth flexible head ratcheting wrench. 5° swing arc to aid in tight spaces. Meets & exceeds international ANSI & DIN standards. Lifetime warranty
sptoolsusa.com
Unfortunately, the SP set made by Infar lacks 16 & 18 mm sizes.
It would be nice if VIM offered a similar standard length set
