Bondhus PHBX8M/S-6 3 mm to 10 mm, 6-Inch Long, Ball End ProHold Socket Bits and Sockets Two ProHold buttons provide plenty of holding power allowing the bits to be quickly inserted or removed from any six point socket, with no need for special tools Ball end tips are designed to be the perfect balance between angle and strength, while providing a consistent full 25 Degrees of working angle Bondhus exclusive Protanium steel makes Bondhus tools up to 20-percent stonger than competitor tools and allows the use of more torque Bondhus' exclusive ProGuard finish delivers up to 5 times more corrosion resistance than any other hex or Star tool finish Bondhus stands behind every sale with a "no questions asked" lifetime replacement policy