8pcs 50mm Torx Screwdriver Bits With Hole T8 T40 1 4 Inch Hex Shank Torx Screwdriver Set With Hole at Kaitlyn Joseland blog Torx Screwdriver Set Homebase at Angel Rhodes blog 14Pcs Set 25mm Torx Screwdriver Bits with Hole T5 T40 Electric Screw. Deep groove metric ball bearings are especially suitable for high speed applications due to their minimal contact design which allows exceptional rotating speed. This bearing has rubber seals on both sides to protect the bearing from dust or any possible contamination, which can extend bearing life, and retain the lubricant in the bearing. The chrome steel bearing balls provide durability and resistance to deformity under heavy loads, and the steel cage evenly spaces the balls for even load distribution and prevents contact to reduce friction, vibrations, and noise. For use in applications that involve combined radial and axial loads and a need for high running accuracy at high rotational speeds. Features: Oil and wear resistant synthetic. Steel reinforcement. Accepts radial and axial loads. Versatile. High rotational speed. Reduce friction, vibration and noise.