Wera Impaktor Bit - Torx (T25x25mm) - excellent long lasting bit for use in corded or cordless impact drivers with 1/4' bit holders. Black oxide finish with diamond coated tip to maximize grip with the fastener and prevent cam-out. Best if used with Wera's tri-torsion bit holder.

See Wera's press release on this new series of impact bits. These are arguably the best impact bits on the market today.