Extra Long Drill
Extra Long Drills are designed for drilling extra deep holes in a variety of normal steels, cast iron, ferrous and non-ferrous metals and alloys. While extra long drills can be used in stationary machines, they are often used in hand held drills to access hard to reach places where jobbers length drills cannot go.
Standard twist drills in 6", 12" and 18" lengths work well in general purpose & maintenance applications when used with recommended coolants or oils.
Aircraft Extension drills also offer a 135 degree split point model which penetrates faster and reduces bit walking when starting a hole.