Check the listing for details. Bondhus 3712 Ball Driver 1/4" Extra Long (Allen Key Tools) RC Tool plus Magnet. Condition: New. Listed at 25.95 USD. This is an "Extra Long" Premium Ball Driver! 1/4" Extra Long Bondhus Ball Driver with ProGuard Finish. Your order also ships with one Telescoping screw (and other parts) positioning Tool (5 inches to 26 inches) with a strong Neodymium magnet. Blade Length 10.3"Total Length 15.1" Ball End inserts into screw at a 25° angle Ergonomic handle design Non-slip grip Two component handle with tough inner core and cushioned rubber exterior Anti-roll design Bondhus Lifetime Warranty No screw will be out of reach! "For many years I didn't have these long balldrivers. I remember how many times I wish I did. I recall losing an airplane because I was too lazy to take the cowl off to check the tightness of the engine mounting bolts. I remember taking the spinner off and seeing that I could actually get to the engine mounting bolts at about a 10 degree angle but they were about seven or eight inches in, and there was no way any balldriver that I had would reach that far. Well long story short, the engine mounting bolts were loose and I lost the plane!" Rich, RTL Fasteners.