Head-in grippers separate with 1/4 turn twist of ratchet.
Part # 51525 – 1/4 drive 8 mm thin wall socket. Use with small grippers.
Part # 54595 – 3/8 drive 12 mm thin wall socket. Use with medium grippers.
Part # 58595 – 3/8 drive 14 mm thin wall socket. Use with large grippers.