Sears offers the Craftsman 3-Piece Hex Key Set with 24 Keys, model no. 46705, for $9.99. Opt for in-store pickup to avoid the $6.50 shipping charge. That's $16 off and tied with our June mention as the lowest total price we could find. This set includes both metric and standard sizes.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.