Tier 2process

Deep Hole Gun Drilling for Aerospace & Defense

Gun drilling creates deep, straight holes with exceptional straightness and surface finish. Critical for aerospace hydraulic components, landing gear, and fuel system parts requiring holes with length-to-diameter ratios exceeding 20:1.

±0.002" per 12"
Tolerances
32-63 Ra
Surface Finish
6+
Qualified Shops
Certified
AS9100

Why Aerospace Requires Gun Drilling

  • ✓Landing gear require deep, precise bores
  • ✓Hydraulic systems need straight fluid passages
  • ✓Fuel system tubes require consistent ID
  • ✓Actuator bodies have deep internal features
  • ✓Cannot be achieved with standard drilling

Typical Applications

→Landing gear main struts
→Hydraulic cylinders
→Fuel rails and manifolds
→Actuator bodies
→Heat exchanger tubes
→Barrel and tube assemblies

Materials Commonly Machined

4340 steel300M steelTitaniumAluminumStainless steelInconel

Technical Considerations

  • •Depths up to 100x diameter possible
  • •High-pressure coolant through tool (1000+ PSI)
  • •Single-flute drill with guide pad
  • •BTA system for larger diameters

Machine Shops with Gun Drilling Capability

JAH Machine Inc.

✓Government Verified
CAGE: 85DP2Updated Jul 26, 2025

Brea, CA

Supplier listing in Brea, CA. CAGE code 85DP2. AS9100 certification registry-verified.

Certifications

AS9100 Certified
ISO 9001 (self-reported)
ITAR (self-reported)
5 services
5 materials
CNC Machining
Precision Machining
Grinding
+2 more

Materials:

AluminumSteelStainless SteelTitanium+1 more

Government Registration

UEI:K5MLNL7J2D95
7142036011
Website
View Details

Allen Tool Phoenix

✓Government Verified
CAGE: 08929Updated Dec 11, 2025

East Syracuse, NY

Supplier listing in East Syracuse, NY. CAGE code 08929. AS9100 certification registry-verified.

Certifications

AS9100 Certified
3 services
4 materials
CNC Machining
Precision Machining
Prototyping

Materials:

AluminumSteelStainless SteelTitanium

Government Registration

UEI:EHJ9U9P9FV14
1942642715
Website
View Details

J&E Precision Tool, LLC

✓Government Verified
CAGE: 0SQ14Updated Jul 7, 2026

Southampton, MA

Supplier listing in Southampton, MA. CAGE code 0SQ14. AS9100 certification registry-verified.

Certifications

AS9100 Certified
ISO 9001 (self-reported)
ITAR (self-reported)
13 services
4 materials
CNC Production
CNC Turning
Manual Prototyping
+10 more

Materials:

Aerospace AlloysMedical Grade MaterialsDefense Specification MetalsHigh-Precision Materials

Government Registration

UEI:FT5ADF1FMSM3
(413) 527-8778
Website
View Details

Accu-Rite Tool & Manufacturing Co., Inc.

✓Government Verified
CAGE: 59GS9Updated Jul 26, 2025

Tolland, CT

Supplier listing in Tolland, CT. CAGE code 59GS9. AS9100 certification registry-verified.

Certifications

AS9100 Certified
ISO 9001 (self-reported)
5 materials

Materials:

Aerospace AlloysSteelAluminumCarburized Materials+1 more

Government Registration

UEI:V8ELYNKS9SK5
(860) 688-4844
Website
View Details

V & T TOOLING, INC

✓Government Verified
CAGE: 6U9W4Updated Jul 26, 2025

TEMECULA, CA

Supplier listing in TEMECULA, CA. CAGE code 6U9W4. AS9100 certification registry-verified.

Certifications

AS9100 Certified
1 services
Prototyping

Government Registration

UEI:E53APD64MW68
5699049323
Website
View Details

BAHR MACHINE COMPANY INC

✓Government Verified
CAGE: 75201Updated Dec 11, 2025

SANTA CLARITA, CA

Supplier listing in SANTA CLARITA, CA. CAGE code 75201.

Certifications

AS9100 (self-reported)
ISO 9001 (self-reported)
1 services
Grinding

Government Registration

UEI:STXDJMFJKHT3
(661)702-0300
Website
View Details

Tolerances Achievable

Position
±0.002" per 12"
Surface Finish
32-63 Ra
General
±0.001" diameter

Recommended Certifications

Need Gun Drilling?

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Frequently Asked Questions

What is Gun Drilling?

Gun drilling creates deep, straight holes with exceptional straightness and surface finish. Critical for aerospace hydraulic components, landing gear, and fuel system parts requiring holes with length-to-diameter ratios exceeding 20:1.

Why is Gun Drilling important for aerospace?

Landing gear require deep, precise bores

What tolerances can be achieved?

±0.002" per 12"