Materials & Applications
Compatibility
Materials & Applications
Recommended use cases for this product across common industrial materials and jobsite applications.
Aluminum alloys, Mild steel, Low to medium steel alloys
Aircraft assembly and structural drilling
Maintenance and service access holes
Deep or obstructed hole drilling
Structural fabrication where extra reach is required
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Technical Description
Essential product information, specifications, and recommended use before ordering.
Champion CS12X 12″ Aircraft Extension Drills — Long-Reach 135° Split Point HSS Drills
The Champion CS12X 12″ Aircraft Extension Drills are heavy-duty extension drill bits engineered to deliver exceptional reach and performance in applications where extra depth and precision are required. Designed for aircraft assembly, structural fabrication, maintenance, and deep drilling tasks, these drills are ideal for creating clean, accurate holes in aluminum and low to medium steel alloys.
Built from high-speed steel with a black oxide finish, CS12X drills resist wear and heat buildup for improved durability and longer tool life. The 135° self-centering split point dramatically reduces walking at the start of drilling, helping professionals achieve faster, more accurate penetration even in deep or awkward positions. The flute length matches a standard jobber drill but with a total length of 12″ to give you the extended reach needed for recessed or obstructed holes.
Key Features
- 12″ Overall Length for deep or hard-to-reach holes.
- 135° Self-Centering Split Point reduces walking and improves accuracy.
- Black Oxide Treated High Speed Steel for enhanced heat resistance and long life.
- Spring-Tempered Shank prevents permanent bending when drilling at angle misalignment.
- Flute length matches standard jobber drills to aid chip evacuation.
Materials & Applications
| Bit Type | Aircraft Extension Drill |
|---|---|
| Overall Length | 12″ |
| Point Style | 135° Self-Centering Split Point |
| Material | Black Oxide Treated High Speed Steel (HSS) |
| Recommended For | Aluminum, low to medium steel alloys |
| Applications | Aircraft assembly, fabrication, maintenance, deep hole drilling |
⚠ Cutting tools may shatter. Always wear eye protection, gloves, and proper PPE when drilling. Use appropriate speeds and lubrication on hard metals.
Most Interesting Product Feature
Product highlight
Most Interesting Product Feature
- Long-Reach 135° Self-Centering Split Point Design. This feature drastically reduces walking at the drill start while providing deep reach with minimal deflection — a major advantage in aircraft and structural applications where precision matters.
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