Archived from the Tools In Action forum (Hand Tools). This thread is read-only.
The model drill I’m referencing here is a Bosch PS-31. I’m wondering if anyone here knows the amount of torque produced in second gear with the torque set to 20 (assuming it’ll be less than 20 inch-pounds of torque in second gear). The guys in the shop are using that setting for one of our builds and I want to be able to also order torque drivers that can be set to the same amount of torque in newton meters. We don’t currently have a torque tester so I’m wondering if anyone here can offer up their expertise.
Thanks ahead of time.
Welcome to the forum.
The Bosch PS31-2A two-speed cordless drill / driver has maximum torque of 265 in-lbs.
The max / no load rpm are 350 and 1,300, so the maximum torque (0 rpm) on the high speed will be 3.7 times less or 71.6 ft-lbs.
It is best to instead select the correct instrument for the job, or to design something the is intrinsically correct, like rotating a mass and beam of known length and weight.
Thanks for the explanation, it’s much appreciated!
I understand how the number settings work just curious if they equate to anything in terms of ft/lb or if it’s just a reference point. It’d be nice if it did especially working on cars when you need to torque something to spec but I can’t seem to find a definitive yes or no anywhere even in the manual
It would be totally inappropriate to use any driver like this to attain a specific fastener torque. These torque to a range and that is appropriate for many fasteners, but not for others.
My tool arsenal currently includes six torque wrenches, from ¼” to 3/4″ drive, to tighten from very light to very heavy values.
IMO, most people who turn their own wrenches only need a 3/8″ and a ½” drive torque wrenches.