Ball end inserts into screw at a 25 deg angle. Ball end saves time by quickly funneling tool into screw. 25 deg angle allows natural hand and wrist movement. Superior ball end strength and working angle. Works in hard to reach places. ProGuard™ finish delivers superior corrosion protection. All Bondhus® tools are made with Protanium® made in the USA high torque steel. 0.05″ – 0.375″