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Technical Specification
PRODUCT NUMBER 2819512397AK10115AK6556AK6550AK65561

Q 1. What sizes are included in the Draper 16784 spark plug socket set?

A. The set contains three sockets covering the most common spark plug thread sizes. The 16 mm socket suits plugs with a 10 mm thread, the 18 mm socket suits plugs with a 12 mm thread, and the 21 mm socket suits plugs with a 14 mm thread.

Q 2. What drive size does this spark plug socket set use?

A. All three sockets in this set are designed for use with a 1/2-inch square drive ratchet or torque wrench.

Q 3. What material are the sockets made from, and how are they finished?

A. Each socket is forged from chrome vanadium steel, then hardened, tempered, chrome plated, and polished. This process provides both structural strength and corrosion protection for a long service life.

Q 4. How does this set protect the spark plug insulator during removal?

A. Each socket is fitted with a rubber insert that cushions and retains the spark plug, preventing damage to the ceramic insulator during both removal and refitting.

Q 5. Is next-day delivery available for this product?

A. Next-day delivery is available on most products and will appear as an option at checkout where eligible.

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