Features and Benefits:

• Forged from the finest chrome molybdenum alloy steel
• 12-point design means less wear on the fasteners
• Included in a heavy-duty blow mold case
• Set includes 3/8?DR 7MM 12PT MTR STD IMP SC(307MZ), 3/8?DR 8MM 12PT MTR STD IMP SC(308MZ), 3/8?DR 9MM 12PT MTR STD IMP SC(309MZ), 3/8?DR10MM 12PT MTR STD IMP SC(310MZ), 3/8?DR11MM 12PT MTR STD IMP SC(311MZ), 3/8?Dt

This is an impact socket wrench. It has 13 pieces. Wrenches are 3/8 in. drive and 12 point. Design makes socket strong and durable.