Amazon offers Prime members the Makita 6-Piece Recipro Blade Assortment Pack, model no. 723086-A-A, for $12.99 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $5.22.) That's the lowest total price we could find by $2. It features 6T, 10T, 18T, and progressive teeth.