Avo Damping rate Allen/Hex Key size

[J_A_R_B]

Hi Guys wanting to put my damping rate up on my rear avo shocks of my williams just wondered what size allen key or hex key. it is. my mate seem to have lost the turn key that comes with them new as never had it.

regards

James

[J_A_R_B]

4mm allen key sorry all just found on there site should have been first place to check