I recently bought a DeWalt Electric Impact Wrench Model DW290. So yesterday I tried to change blades using it. Guess what. It is too big now. The length of Wrench with Socket is 12 to 13 inches. Now with a 4 inch blade bolt I need 16 inches of clearance to remove & install bolt. I use a Jungle Jack to raise my mowers and I only have about 10 inches of clearance. Any suggestions before I return this item. Thanks.