1.0
PRODUCT OVERVIEW:
1.1
Major Components:
The E-Drill system comprises; the Touch-Screen Display, Mounting Post and Cable
assembly, the Hand Tool and Umbilical Cable assembly, and the Mobile Service Unit
control cabinet. Various Tool Adapters, Electrodes and Accessories are supplied for
removal of specific fastener configurations and materials.
1.2
Technical Specifications:
Fastener Sizes: CG Hand tool - 5/32”–3/8”, inc. oversize’s
EG Hand Tool – 3/32”-1/4”, inc. oversize’s
Fastener Material: Aluminum, Titanium, Stainless Steel,
Alloy Steel, Inconel, Monel etc.
E-Drill Hand Tool Dimensions (approx.): 7.5” x 5” x 2”, 1.5 lb. (plus 10 ft. or 30 ft.
umbilical)
Mobile Service Unit Dimensions: 26” x 56” x 18”, 175 lb.
(including Toolbox & Adapter Kit)
Umbilical Extension: 20 ft. long (optional extra)
System Power Cable Assembly: 12 AWG, L6-20P Twist-lock Plug (except
Europe), 25 ft. long
* Facility Power Requirements: 220/240VAC, Single Phase, 20 Amp, 50/60
Hz, L6-20 Twist-lock Receptacle Plug
(except Europe)
Maximum Duty Cycle: 30 fasteners, or as many as possible with
one electrode (whichever is the least), at the
rate of 3 fasteners/minute (totaling 10
minutes). 1-minute minimum recovery time.
1.3
Operating Principle:
Conventionally fasteners are removed by drilling out the head of the fastener with a
hand drill and twist drill bit. This process is slow, requires significant strength from the
operator, generates Foreign Object Debris (FOD), and frequently results in damage
to the airframe.
The Perfect Point E-Drill system is a hand-held Electrical Discharge Machining (EDM)
tool designed to aid in the removal of hard airframe fasteners. The E-Drill device
weakens the fastener by electrically eroding a circular groove through the fastener
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