Home Depot offers the Milwaukee 40-Piece Shockwave Impact Duty Steel Driver Bit Set, model no. 48-32-4008, for $19.97. Opt for in-store pickup to avoid the $5.99 shipping fee. That's the lowest price we could find by $8. It features optimized shock zone geometry, carrying case with pull latch, and custom alloy 76 steel.
CPO Outlets via eBay takes an extra $15 off new and factory-refurbished Milwaukee tool purchases of $100 or more. (Discount applies in cart.) Plus, these orders receive free shipping. Refurbished items are covered by a 1-year Milwaukee warranty. A couple of best bets, with prices after discount and comparisons to new units:
Home Depot offers the Milwaukee M12 Fuel 5" Circular Saw with Free Battery, model no. 2530-20-XY, for $149 with free shipping. (ToolUp via eBay has it for the same price with free shipping.) That's the lowest total price we could find by $6. It delivers up to 170 cuts per charge and features a Powerstate brushless motor, Redlink Plus intelligence, and a Redlithium XC 4.0 battery pack.