The Performance Tool W38174 3-piece detent ball spark plug socket set provides a reliable, long-term solution for spark plug maintenance, featuring a unique detent ball retention system that offers a secure grip on spark plugs without the deterioration of traditional rubber inserts. Constructed from high-strength, heat-treated chrome vanadium steel with a polished nickel chrome plated finish, these sockets are built to be corrosion resistant and long lasting. The set includes the most common spark plug sizes 14mm, 16mm, and 21mm all with a convenient 3/8-inch drive. The wrench-ready hex end socket adds versatility so that they can be delicately adjusted with hand or power tools making this set a smart choice for any automotive enthusiast, DIYer, or professional mechanic looking for dependable spark plug removal and installation.

Product Features:

• The set includes the most common spark plug sizes 14mm, 16mm, and 21mm all with a convenient 3/8-inch drive.
• Set includes 3/8 in. Dr. 14 mm, 16 mm, and 21 mm spark plug sockets
• Sockets feature a ball bearing detent retention system that grips the spark plug better than traditional rubber inserts
• The ball bearing detent retention system will not wear out and become loose like a traditional rubber insert
• Constructed of heat-treated chromium-vanadium alloy steel for strength and durability
• Polished nickel chrome plated finish resists corrosion.