A driver for tightening and loosening hexagonal headed bolts.

• A. Screw Driver
• B. Nail Pulling Pliers
• C. Wood Carving Set
• D. Ratchet Set

Answer: (D)

For hexagonal-headed bolts, a ratchet set is the most suitable driver. It combines a handle with interchangeable hex sockets that fit the bolt head sizes, allowing you to apply torque efficiently. The ratchet mechanism lets you turn in one direction to tighten or loosen while the handle returns to a ready position without needing to lift the tool off the bolt after each partial turn, which is especially helpful in tight spaces. You can swap to the correct socket size to match the bolt, ensuring a secure grip and reducing the risk of rounding the bolt edges. Other tools don’t fit hex bolts: a screwdriver is designed for screws with flat or cross slots, nail pulling pliers are for removing nails, and a wood carving set is for shaping wood.