Kmart offers the Craftsman Evolv 7-Piece Metric Combination Wrench Set, model no. 50288, for $6.17. Opt for in-store pickup to dodge to the $6.25 shipping charge. That's $7 off and the lowest price we could find. It includes 8mm to 17mm wrench sizes.
Of note, Shop Your Way Rewards members will earn a Kmart credit with this purchase and may be eligible for additional credits and discounts.