Drive Multiplying Device

A drive multiplying device comprising:

• a housing, said housing being substantially rectangularly box shaped, said housing comprising aluminum;
• a drive shaft rotationally coupled to and positioned through a first face of said housing, wherein a first end of said drive shaft extends from said first face of said housing, said first end being configured for coupling to a rotary tool;
• a plurality of second shafts rotationally coupled to and positioned through a second face of said housing, wherein a first terminus of each said second shaft extends from said second face of said housing, each said first terminus being configured for coupling to a drill bit, said plurality of second shafts comprising two said second shafts;
• a plurality of couplers, each said coupler being coupled to said first terminus of a respective said second shaft, wherein each said coupler is positioned on a respective said second shaft such that said coupler is configured to couple a drill bit to said respective said second shaft, each said coupler comprising:
• a collar coupled to said first terminus of said respective said second shaft,
• a penetration positioned through a wall of said collar, said penetration being threaded,
• a grub screw complementary to said penetration, and
• wherein said grub screw is positioned to thread into said penetration such that said grub screw is configured for tightening onto a respective drill bit positioned in said collar, such that the drill bit is coupled to said second shaft;
• a gear set positioned in said housing, said gear set being gearedly coupled to said drive shaft and each of said plurality of second shafts, said gear set being positioned is said housing such that each of said plurality of second shafts rotates in the same direction that said drive shaft is rotated, said gear set comprising:
• an idler shaft rotationally coupled to and extending between said first face and said second face of said housing,
• a first gear coupled to said idler shaft proximate to said first face,
• a second gear coupled to said idler shaft proximate to said second face,
• a drive gear coupled to said drive shaft proximate to a second end of said drive shaft, said drive gear being gearedly coupled to said first gear,
• a pair of sprockets, each said sprocket being coupled to a respective said second shaft proximate to a second terminus of said respective said second shaft, said sprockets being gearedly coupled to said second gear, and
• wherein said drive gear is positioned to compel rotation of said idler shaft, such that said idler shaft is positioned to compel rotation of said pair of sprockets and said second shafts, wherein the drill bits coupled to said first termini of said second shafts are rotated;
• said first gear, said second gear, said drive gear and said pair of sprockets comprising spur gears;
• said second face of said housing comprising a plate, said plate being reversibly couplable to said housing;
• a plurality of fasteners configured to reversibly couple said plate to said housing, said plurality of fasteners comprising four said fasteners, said plurality of fasteners comprising:
• a plurality of first holes positioned through said plate proximate to a perimeter of said plate,
• a plurality of second holes being positioned in a sidewall of said housing, said second holes being threaded, each said second hole being alignable with an associated said first hole,
• a plurality of set screws, said set screws being complementary to said second holes, and
• wherein each said second hole is positioned for alignment with said associated said first hole, such that a respective said set screw is positioned for insertion through said associated said first hole and screwed coupling to said sidewall to reversibly couple said plate to said housing;
• and
• wherein said grub screw is configured to tighten onto a respective drill bit positioned in said collar, such that the drill bit is coupled to said second shaft, wherein said first end of said drive shaft is configured to couple to a rotary tool, such that the rotary tool can compel rotation of said drive shaft, such that said drive gear is coupled to said drive shaft is positioned to compel rotation of said idler shaft, wherein said idler shaft is positioned to compel rotation of said pair of sprockets and said second shafts, such that drill bits coupled to said first termini of said second shafts are rotated concurrently with said drive shaft.