For its Ace Reward Members, Ace Hardware offers the DeWalt 5″ Corded Random Orbit Sander for $39.99. (Sign into your account and add it to your cart to see this price.) Opt for in-store pickup to avoid the $8.81 shipping charge. That’s the lowest price we could find by $25. It features a 3.0-amp motor that spins the pad at 12,000 OPM.