Just used my new WIF senor wrench from Merchant Automotive. Very nice anodized alluminum wrench I beleive made of 1/4" 6060T6 alluminum. They must have used a lazer to cut the wrench, no sharp edges and fits the sensor like a glove. Beats the heck out of a channel pair of plyers. Expensive.......yes but Ya get what ya pay for.