It is ironic that I bought four new click stop ProTo torque wrenches in 1970, then a new ProTo 30 inch pound dial type for adjusting injectors in 2001, yet ten + years later, bought three used open beam torque wrenches that will work in reverse rotation: a Duro 3/4" drive that goes to 300 foot pounds, a Duro 1/2" drive that goes to 150 foot pounds, and a SK 3/8" drive that goes up to 200 inch pounds.
The ProTo 3/8" drive from 1970 failed within ten years, and was recently replaced by a CDI ..
So, other than reading in reverse; why in the dickens would I buy some old relic style torque wrenches after all those years? Well, I seldom question their accuracy, and with a eight point socket, use them to test the accuracy of the click stops.
On a side note: the ProTo 1/2" drive click stop still clicks between the 98 and 99 pound area on the scales of a couple old open beam torque wrenches, and it has never been re-calibrated!
If I buy a new torque wrench; it will be for enjoyment and convenience rather than need or desperation. But I do look forward to enjoying a new electronic torque meter.