Features:
- 12 Inch Aircraft Extension Drills are designed for drilling holes in aircraft assembly work where long reach is needed
- Ideal for drilling aluminum and low to medium steel alloys
- Drills will not walk on workpiece due to 135° self-centering split point
- Flute length is the same as a standard jobber drill
- Black Oxide Treated High Speed Steel enhances heat resistance and longer tool life
- Spring tempered shanks prevent permanent bending when drilling holes not in direct alignment
- High Speed Steel
Specifications:
- Drill Type: Aircraft Extension Drills
- Performance Level: General Purpose
- Size: Fractional Sizes
- Drilling Application: Aluminum, Low-Medium Steel Alloys
- Point Style: 135 Degree Split Point
- Package Style: Standard
- Overall Length (IN): 12
Warning:
- Cancer & Reproductive Harm.
- Cutting tools may shatter.
- Always wear appropriate safety equipment.
1/8in 12in Aircraft Extension Drills:
- Size: 1/8
- Decimal Equivalent: 0.125
- Flute Length (IN): 1-5/8
3/16in 12in Aircraft Extension Drills:
- Size: 3/16
- Decimal Equivalent: 0.1875
- Flute Length (IN): 2-5/16
1/4in 12in Aircraft Extension Drills:
- Size: 1/4
- Decimal Equivalent: 0.25
- Flute Length (IN): 2-3/4
5/16in 12in Aircraft Extension Drills:
- Size: 5/16
- Decimal Equivalent: 0.3125
- Flute Length (IN): 3-3/16
3/8in 12in Aircraft Extension Drills:
- Size: 3/8
- Decimal Equivalent: 0.375
- Flute Length (IN): 3-5/8
7/16in 12in Aircraft Extension Drills:
- Size: 7/16
- Decimal Equivalent: 0.4375
- Flute Length (IN): 4-1/16
1/2in 12in Aircraft Extension Drills:
- Size: 1/2
- Decimal Equivalent: 0.5
- Flute Length (IN): 4-1/2