Sears offers the Worx 20V Cordless Grass Trimmer/Edger, model no. WG156, for $59.99 with free shipping. That's $20 under our mention two weeks ago and the best deal we've seen. (It's also the lowest total price we could find today by $20.) It features an adjustable shaft, tilting head, and flower guard; also included are two batteries, a charger, and a spool.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.