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A. The Draper Expert 16774 is designed for spark plugs with a 14mm thread size and uses a 21mm socket size to engage the plug hex.
A. The socket uses a 3/8" square drive, making it compatible with standard 3/8" drive ratchets, extensions, and torque wrenches.
A. The socket has an overall length of 65mm, providing the deep profile required to reach recessed spark plug positions.
A. The rubber insert serves two functions: it protects the ceramic body of the spark plug from damage during handling, and it retains the plug within the socket for safe, controlled removal and installation.
A. It is manufactured from chrome vanadium steel that has been hardened and tempered, then finished with a polished chrome plating for durability and corrosion resistance.
A. The knurled ring provides extra grip when positioning or withdrawing the socket by hand, which is particularly useful in tight engine bay spaces.
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