On Mon, 15 May 2017 10:20:50 -0700, Larry Jaques
wrote:

On Mon, 15 May 2017 05:59:37 -0700 (PDT), robobass
wrote:


"14mm might be too big for the amount of torque that 1/4" can handle"
If this is true, you are certainly working on different kinds of things than me.

I experimented with my Bosch 14.4v Impactor (1/4" hex drive) and a
13/16" (metric equiv: 21mm) socket and successfully removed my F-150
wheel. That's 90 foot pounds of torque to install, usually up to
120ft/lb to remove. I'd say that 1/4" can handle a 14mm socket's
demands, although I did put a twist in an HF 1/4hex-3/8square adaptor
once building a porch. Those 1/2"x8" galv bolts going into 1902 wood
beams under the house were tough, even though I drilled pilot holes.
That took the larger of my drills to accomplish, but I got the holes
drilled and the ledger board installed properly with the impactor. The
adaptor twisted about 20-degrees from the repeated hammering. Wow!
That is an IMPACT load, not a steady torque. Take your torque wrench
and a few adapters, and adapt down to 1/4 drive and try torquing the
wheel nut to 95 ft lbs.

The "generally accepted safe load" on a 1/4" drive is 300 inch lbs -
which comes out to about 25 ft lbs.

Snappy has a 9 inch 1/4 drive ratchet that is apparently good for up
to 90 ft lbs. That will put a LOT of twist into a 10 inch 1/4 drive
extention!!!!