2.5mm Length: 3.5 Inch ProHold(TM) Balldriver L-wrenches hold screws snug on tool and do not interfere with tool rotation. Stripping does not occur when pressure is applied to the non-magnetic ProHold tip. Save time using the ballpoint on the long arm to reach remote and blind locations. The short arm allows for high torque and features a precision tip that permits unobstructed screw entry every time. Only available from Bondhus, Protanium steel means these are the strongest tools available. Bondhus Balldriver L-wrench Hex tools allow you to work at an angle, making the job easier. Unique non-magnetic button does not weaken tool or strip screw, but holds screw snug without interfering with tool rotation. Bulk 25pk