Space, every inch of it, is at a premium in aircraft design as shape
and weight is critical to function. Also, airplanes are riveted together
which requires thousands of holes to be drilled in difficult locations without
scratching or marring the work surface. So, engineers needed to design a
versatile "chuck-less" drill attachment that could reach into
very confined areas.
The answer was found in putting threads on the shanks of drill bits. The
benefits are significant. Threaded drill bits eliminate the need for a chucking
mechanism. Freed of this restriction, it is possible to do a wide variety
of jobs in places with extreme space limitations (less than 1" x 2").
Chuck slippage is all but eliminated while the precision mating angle between
threaded drill and drive spindle insures concentricity. Drill bit change
times are reduced, an exact working drill bit length is insured and the
chance of marring or scratching the work surface is greatly reduced.
The Model 00105 Kit includes: a versatile close-quarter Right Angle Drill
Attachment capable of drilling up to 1/4" diameter holes and compatible
with all standard power drills, a 6" Threaded Extension for those deep
hard-to-reach spots, a Chucking Spud which allows direct use of threaded
TightFit® drill bits and extensions with your standard drill motor,
five aircraft quality threaded TightFit® drill bits (Short Drill Bit
Set, 00133), a Tight Fit® 3-Way Wrench, and is packaged in a red, heavy-duty,
blow-molded storage case.
Features
Attaches to any power drill; Recommended operating speed not to exceed 2500 rpm.
Light weight; Right angle drill weighs 1/3 of a pound and rotates 360 degrees for tight-spot access.
Threaded components allow for fast, easy tool changes; Drill over, under or around obstructions.
Design allows "deep reach" in confined areas; Provides utility of extension drill bit set.