The Olsa Tools takes this comparison. It is near the front almost everywhere: 18.1 passes per rotation for fourth
on working arc swing, a joint-best 0.017 in of head-to-handle play, 219 g of
back drag, the second most compact head at 365 mm², and 279.5 ft-lb before the
drive let go. The one complaint is the directional switch, which needs 589 g —
a relatively minor detail against the rest of the package. The GearWrench 90T at
$67 is the runner-up and was beaten by the Olsa Tools in all but one category:
18.2 passes per rotation, the slimmest front-to-back head at 12.15 mm, a light
238 g selector, and 276.5 ft-lb at failure. GearWrench has the ingredients to
win outright — its standard 90-tooth ratchet is noticeably smaller and more
refined than the flex-head version, and a flex head built on that smaller body
would be hard to beat.
For a low-cost pick the $44 ICON is the one to look at. It matched the
GearWrench 90T at 18.2 passes per rotation with a smooth 92-tooth action, held
0.11 in of head slop, dragged at 298 g, needed only 297 g at the selector, and
took 287.4 ft-lb before the drive broke — third strongest in the lineup and
ahead of every premium brand except the Snap-On. The $75 Craftsman is the
specialist: its 96-tooth enclosed head won the arc-swing test outright at 16.3
passes and it was the strongest ratchet here at 295.2 ft-lb, but 686 g of back
drag is the worst in the test and will drop a socket off a fastener the moment
there is no room for a finger. The $35 Kobalt is the choice when nothing else
fits — the smallest head at 321 mm² and the lowest back drag at 192 g — as long
as it is not the tool reaching for high torque, since its handle broke at 169.5
ft-lb.
Price is close to useless as a guide in this category. The $226 Proto, $183
Nepros, $173 Snap-On and $165 Mac Tools have the most refined mechanisms in the
test, and every one of them gave something important away: the Nepros needs 829
g at the selector and its handle is too big to work in a tight space, the Mac
Tools has 0.15 in of head play and broke at 206 ft-lb, and the Proto sits
mid-pack on back drag at 333 g. At the other end, the $18 Duratech and $27
Crescent both have sloppy gear sets, needing 24 passes per rotation, and roughly
a quarter-inch of play at the head pivot. Look past the tooth-count claims on
the package and check the three things that decide how a flex-head ratchet
actually works in a tight space: how much play the pivot has, how much drag the
gear set puts on the socket, and how big the head is.