Devices and methods of using them to assemble two or more workpieces to each other

A device configured to attach two workpieces to each other, the device comprising:

• a base comprising a planar member configured to engage a planar surface of a first workpiece, the base further comprising a second member coupled to the planar member, the second member configured to engage a first planar surface of a second workpiece positioned adjacent to the first workpiece, the second member further configured to receive an attachment device;
• a first handle coupled to the base, in which the first handle comprises a first internal valve configured to fluidically couple to an external pressure source, in which the first handle further comprises a first plunger configured to actuate the first internal valve to an open position after movement of the first plunger from a first position to a second position and to close the first internal valve after release of the first plunger to the first position, wherein in the open position the first internal valve permits air pressure to build in the device;
• a second handle coupled to the base, in which the second handle comprises a second internal valve configured to fluidically couple to the first internal valve of the first handle upon movement of the first plunger of the first handle to the second position of the first internal valve, in which the second handle further comprises a second plunger configured to actuate the second internal valve to an open position after movement of the second plunger from a first position to a second position and to close the second internal valve after release of the second plunger to the first position, wherein the second internal valve is configured to fluidically couple to the attachment device when the second plunger is moved to the second position to actuate the attachment device and cause the attachment device to insert a first fastener into the first and second workpieces to hold them together, wherein, after insertion of the first fastener into the first and second workpieces, the second plunger is configured to be released to permit movement of the second plunger from the second position to the first position to permit air pressure to build up again in the device, when the first plunger remains in the second position, before a second movement of the second plunger from the first position to the second position causes the attachment device to insert a second fastener into the first and second workpieces;
• and
• a pneumatic cylinder coupled to the planar member of the base and fluidically coupled to the first internal valve of the first handle upon movement of the first plunger of the first handle from the first position to the second position, the pneumatic cylinder configured to engage a second planar surface of the second workpiece when the first plunger is moved from the first position to the second position.