Re: torque to 30 in-lb
Usually you use a torque wrench that measures inch pounds or one that measures foot pounds. I don't recall ever hearing of one that does both.<br /><br />Think of a 1/4" drive ratchet and a 1/2" drive ratchet. If you want to torque a 5/16" head bolt to 20 inch pounds, it would be difficult to do with a 1/2" drive ratchet. <br /><br />If you want to torque a 3/4" head bolt to 30 foot pounds. It would be impossible with a 1/4" drive ratchet.