The GB731 is a pneumatic-hydraulic installation tool designed specifically for the efficient installation of blind rivets and lockbolts. It weighs 5.75 lbs. (2.61 kg) and can be operated in any position. It has a .600" (15.24 mm) fastener setting stroke and a rated pull load of 4,800 lbs. (21.35 kN) with 90 psi (6.2 bar) air pressure at the air inlet.

The GB731 installation tool operates on 90 to 100 psi (6.2 - 6.9 bar) of air pressure, with 90 psi. (6.2 bar) providing the maximum efficiency. At 90 psi. (6.2 bar) of air pressure, the GB731 does not exceed 81.5 dB(A) and consumes .16 SCF/cycle (4.53 L/cycle). The air inlet is provided with 1/4 - 18 female pipe thread for accepting the user's air hose fitting. Nose Assemblies that were designed for the Model 352 Installation Tool mount directly on the GB731 without the use of an adapter.