ER11 Collet size lying?

[m_c]

Depends on the type of nut - http://www.techniksusa.com/metal/torque_chart.htm

For me with ER32 collets in the mill, I double gear it to lock the spindle, then give the collet spanner a couple good hits with my fist, which is probably a bit less than the recommended figure, but I've never had any movement issues.

[Philly]

Cheers for the help guys, I'll just have to hold the job off for a few days while I wait for the set to arrive. Good job really because I dropped the 6mm one while inspecting it and not found it yet, they have some spring in them ;)

It seemed like it may have tightened but the nut ran out of thread before it had a chance too. Not too worry, I'll be up and running soon enough.

Thanks