6 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