The perfect tool for getting into those hard to reach places. Ball wrenches make it possible to turn socket head screws or bolts from various angles. This set DUB453 contains one each of : 1.5mm, 2.0mm, 2.5 mm, 3.0 mm, and 4.0 mm. Ball End inserts into screw at a 25 degree angle Ergonomic handle design Non-slip grip Two component handle with tough inner core and cushioned rubber exterior Anti-roll design