Does using a 3 inch extension on a torque wrench have any bearing on the amount of torque applied? This is your standard 3" extension attached to the socket at a right angle to the wrench, it is not extending the overall length of the wrench. The manual for the wrench (Craftsman) gives a formula to recalibrate the wrench when using extensions, but it looks like they are just adding length (L) to the wrench, which I know will change the torque. T = F x L
