The T10 x 2" star drive power bit is used to fasten the #4-24 x 5/8" stainless steel 6-lobe socket head cap screw that secures the cable rail post hole cover to the post.

These power bits are made from S2 modified shock-resistant steel for professional performance and enhanced durability.

Use with any standard drill/driver or 1/4" quick-change bit holder.