Which handy jig is used for drilling holes appropriately centered for dowel joints?

• A. Dowell Drilling Jig
• B. Torpedo Level
• C. Level
• D. Protractor

Answer: (A)

When making a dowel joint, holes must be drilled exactly in the centers of the pieces so the dowels fit straight and the joint pulls tight. A dowel drilling jig provides a fixed guide that clamps to the workpiece and directs the drill bit to the precise centers and spacing you need. It keeps the drill perpendicular to the surface and ensures consistent placement across pieces, which is crucial for alignment when assembling the joint.

The other tools shown aren’t designed to guide drilling to centered holes. A torpedo level or level checks whether something is horizontal or vertical, not where to bore. A protractor measures angles, not hole centers or hole spacing. So the dowel drilling jig is the best choice for accurately centered holes for dowel joints.