Wire Hole Drilling
Precision small-diameter deep-hole drilling for accurate, straight bores in aerospace and high-performance components.
American Drilling Company provides wire hole drilling services for applications requiring long, straight, small-diameter holes with tight positional control. This capability complements our gundrilling operations and supports components where conventional drilling methods are not sufficient to maintain accuracy over extended depths.
Common Applications
- Fastener drilling for NAS, AN, MS, and Boeing parts
- Screws, fittings, and nuts
- Jet engine fasteners supporting programs such as Pratt & Whitney, GE, and Rolls Royce
- 12-point and spline bolts
- Hex corner holes
- Cotter pin holes
Technical Range
Our wire hole drilling capabilities support small-diameter deep-hole requirements where straightness, concentricity, and surface condition are critical to part performance.
- Safety-wire / lockwire hole drilling for aerospace hardware
- Cotter pin hole drilling
- Support for fasteners and precision hardware, including NAS/AN/MS and Boeing part families
- Capability to process a broad range of materials, including: Inconel, Waspalloy, A-286, Titanium 6-4, MP35N, 4130, 8740, 15-5PH, PH13-8MO, Rene 41, H-11, S-7, 440C (and others)
- Quality system per MIL-I-45208
- Calibration system per MIL-STD-45662
- Lead time on most jobs is less than one week


OnSite Equipment
ADC’s wire hole drilling department is supported by 200+ custom-built drilling machines dedicated to safety-wire/lockwire/cotter-pin applications, enabling efficient processing across a broad mix of aerospace hardware.
This capability operates alongside ADC’s broader machining footprint and supports integrated workflows when wire hole drilling is required in combination with CNC turning/milling, gundrilling, or honing operations.
Put Our Capabilities to Work
Need fast, consistent wire hole drilling for production hardware? Share your part requirements and specifications—our team will help determine the right approach and turnaround.