Postby woodspirit » Thu Sep 06, 2012 6:30 pm


I have a ryobi cordless screwdriver which has 10 torque settings, can someone explain in simple terms what these torque settings are and what they are for?.

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Postby plumbbob » Thu Sep 06, 2012 10:02 pm

The cordless drill you mention like many has a clutch that disengages the drive at certain times.

Torque is the amount of force available to turn the chuck. So in effect, the higher the torque, the bigger the screw the gun will drive in. If you only want to drive in small screws, reduce the torque setting. This will reduce the level at which the clutch will dis-engage the drive so protecting the screw from snapping or being over driven into the work.

That does not mean you HAVE to use a lower torque setting when driving small screws.
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Postby Dagswe21 » Fri Nov 06, 2015 6:16 am

Hi there.
I hope I'm not too late replying, as I see your post was dated 6th September, but anyway....
Basically, as far as I'm aware, variable torque settings only come on cordless drills. Don't sk me why, but as far as I know they do!
Torque settings are like the clutch in a car. Sort of. Bear with me. 'Torque' is the amount of power or energy - or 'strength' with which the drill can turn the drill bit. The more torque a drill has, the more strength it can turn its bit with.
But why have this, one may ask? Is it not best to just have the most power possible from any given drill? A prime reason is, say you are using the drill in Screwdriver mode (ie, as a screwdriver). If the drill just went full steam, you can easily damage the screw, or the item being screwed, if this is, say, plastic or wood. Just lower the torque setting, and upon reaching a certain screwing strength, the drill will 'slip' just like a car's clutch, and prevent any damage. The excess energy will be dissipated by the drill's clutch "slipping". Of course, for any job, you need to know what material you are screwing, into what material, to be able to set the correct torque setting for that job. Sorry about the light of the reply, but I hope it helps!!! Cheers.
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