I'm interested in a torque wrench for the daily use, not just occasional use, so would like a torque wrench that doesn't require re-calibrating and will last indefinitely, i've been looking at the Park Tool beam type wrenches such as this http://www.chainreactioncycles.com/Models.aspx?ModelID=8071. Has anyone used that one (0-7nm) or the larger torque version? Is the accuracy on the larger version not as good for lower end (0-15nm say) torque so worth getting both? Or are Beam type wrenches just old hat now?
Thanks a lot
I bought one for a good friend, top piece of kit - and tbh you'll just want to mount it in a frame and stick it on the wall.
they do look good...... only £38 off parker international too
How do you re-calibrate a regular torque wrench?
Something to do with tightening/loosening the internal spring i think, very tricky to do it yourself from what i grasp, send off job i think
http://www.parker-international.co.uk/11800/Park-Tool-TW2-Torque-Wrench---3-8-inch-Drive.html
Anyone managed to use one of these /\
Are they accurate enough for around 4-7nm?
Better for general use than the 0-7nm one or does 0-7nm cover the majority of what people use them for ( i know brake/bar/clamp/stem bolts fall within this range)
I had one of the smaller park i-beams. I bought it for the old fox 36's with the pinch bolts as i'd read people kept on snapping the drop-out (before the spacer mod).
It did what it was designed for well but I sold it. I thought as forks and carbon parts require such specific low settings it was a necessity but it wasn't. If you're worried about over tightening small bolts just use an allen key the wrong way round i.e. hold the short end with just two fingers and your thumb. You'd have to be a real numpty to over tighten something that way, or under tighten it.
The problems come from people who instead of just nipping a bolt up use 3/8, 1/2 ratchets or the long end of allen keys and really crank it up. Where they should have 7-10nm's they are doing it up to 20nm plus. You'd be hard pushed to tell a difference of 3-5nm.
IMO torque wrenchs are a good idea if you haven't much mechanical experience and need a guide as to what 10nm is or you're doing something up really tight such as a car head. Torque wrenchs with springs should always be un-wound to zero after use as well otherwise you will damage them.