A duplex drill pipe wrench (10) is used to provide the torque wrench function to both make up/break out pipe stands and to service drill string.

The double keyword is used to declare a variable that can hold a 64-bit double precision IEEE 754 floating-point number.

double The double keyword is used to declare a variable that can hold a 64-bit double precision IEEE 754 floating-point number.

A key pair is then generated on the device, ideally on a smart card.

An embodiment provides for authentication cards and authentication PINs to facilitate double-key authentication.

or simply opening the handcuffs with a duplicate key, often hidden on the body of the performer before the performance.

[17] HP Dual Head Keyed Cable Lock Kit: optional and must be configured at purchase.