01 — Essential Specifications
Choose with confidence
Essential specifications
The facts that matter most when choosing the right product in this family.
02 -- Materials, Applications & Machines
Working compatibility
Materials, applications & machines
Quickly confirm what the tool can cut, the work it is designed to perform, and the equipment it is intended to run on.
Compatible materials
Recommended workpiece materials
- Aluminum
- Steel
Recommended applications
Typical jobs and operations
- Aluminum Low-Medium Steel Alloys
- Holemaking
Compatible machines
Equipment and operating methods
- Portable drill
- Drill press
03 -- Complete Technical Specifications
Technical data
Complete technical specifications
Open only the groups you need to confirm construction, dimensions, and operating requirements.
Construction & identification
Tool typeDrill Bits
Tool subtypeAircraft Extension Drill Bits
Detailed styleSplit-Point HSS
Manufacturer series7012
Series family7012
Measurement systemImperial
Tool materialHigh-speed steel
Manufacturer part number7012-5/16
Dimensions & fit
Size5/16"
Cutting diameter5/16
Flute / cutting length3-3/16
Overall length12
Pack quantity1
Cutting geometry
Point geometry135 Degree Split Point
Point angle135.0°
04 -- Why Choose this series
Series advantage
Why choose the 7012 series
7012
135° self-centering split point with spring-tempered shank for long-reach aircraft assembly drilling
Features supporting this advantage
- 135° self-centering split point with spring-tempered shank for long-reach aircraft assembly drilling
- High-speed steel
- 135 Degree Split Point
05 -- Compatibility & What's Included
Compatibility & contents
Confirm the fit before ordering
The systems, models, and components below come directly from the product’s normalized fit data.
What’s included
Components supplied with this product
- Single 12-inch aircraft extension HSS drill bit
- black oxide treated
- 135° split point
- spring-tempered shank
- Made in USA
06 -- Use Notes & Technical Description
Before you use it
Use notes & technical description
Important fit, operating, and care guidance to review before putting the tool to work.
View the complete technical description
Champion 7012-5/16 5/16" 12" Aircraft Extension HSS Drill Bit – 135° Split Point
7012-5/16 is a Champion 7012 12-inch aircraft extension high-speed steel drill bit in 5/16" (0.3125 inch decimal equivalent). It is designed for long-reach drilling in aircraft assembly work, aluminum and low- to medium-strength steel alloys.
Key Benefits
- 12-inch aircraft extension design provides long reach while keeping the flute length similar to a standard jobber drill.
- 135° self-centering split point helps prevent walking when starting the hole.
- Black oxide treated high-speed steel supports heat resistance and longer tool life.
- Spring-tempered shank helps resist permanent bending when drilling holes that are not in direct alignment.
- Made in USA by Champion Cutting Tool.
Applications
- Aircraft assembly and maintenance drilling where long reach is needed
- Drilling aluminum and low- to medium-strength steel alloys
- Portable power drills and drill presses
- Holemaking for the 5/16" diameter
Technical Specifications
| Manufacturer part number | 7012-5/16 |
|---|---|
| Series | Champion 7012 12-Inch Aircraft Extension Drills |
| Drill type | Aircraft extension drill bit |
| Size designation | 5/16" |
| Decimal equivalent | 0.3125 in |
| Material | High-speed steel |
| Finish | Black oxide treated |
| Point style | 135° self-centering split point |
| Flute length | 3-3/16 inches |
| Overall length | 12 inches |
| Shank | Spring-tempered extension shank |
| Performance level | Medium duty |
| Drilling application | Aluminum and low-medium steel alloys |
| Package style | Standard |
| Package quantity | 3 |
| Country of origin | Made in USA |
How to Use
Use the 7012-5/16 with the correct speed, feed and workholding for the material. Keep the drill aligned with the workpiece, use suitable cutting fluid when needed, clear chips regularly and avoid forcing the tool.
Cutting tools may shatter if misused or overloaded. Wear eye protection and follow the drill and machine manufacturer's operating instructions.
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A clear process from order to delivery
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1
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2
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Details confirmed
3
Picking and packing
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4
Tracking provided
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5
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