The opening shape makes more contact with fasteners for a better grip than standard open-end sockets. Also known as flare-nut or line wrench sockets, they're often used with flared tube fittings and fuel and hydraulic lines.

Achieve the best possible grip on hex fasteners and prevent rounding.

Push the square drive through the adapter to change size.

Fit these adapters between your wrench and socket to enable finger tightening.

Attach one of these adapters to a socket to turn it with an open-end or box wrench.

A digital display shows how torque measurements change as you turn the wrench. Set the desired torque and angle—lights and an audible alarm indicate when target has been reached or exceeded.

Turn sockets with a bit screwdriver.

Set a desired torque within the range.

A magnet holds the socket, making changes quicker.

Pull the collar to quickly attach and remove sockets.

Turn nuts on bolts and threaded rod, which can pass through the short end of the wrench. For additional leverage, slip a bar through the short end to create a T-handle.

These wrenches have one pivoting socket end and one open end.

Made of spark-inhibiting materials, these wrenches are also corrosion resistant.

When the set torque is reached, these wrenches slip to disengage and stop overtightening.