Amazon.com offers the Drill Doctor 13-Piece Drill Bit Set, model no. PP70102ZF, for $3.72. Shipping adds $5.23, or spend over $25 to qualify for free shipping. Even with shipping, that's the lowest total price we could find by $7. It includes 13 titanium-nitride coated drill bits from 1/16" to 1/4" and a cylindrical storage case. They're designed for common household drilling in wood and metal.