$2, "T50 Tamper Proof Torx bit, 3/8"" sq.dr. bit holder"

"Vim Products PFC6TR50 VIMPFC6TR50 T50 Tamper Proof Torx bit, 3/8"" sq.dr. bit holder " Model: VIMPFC6TR50 Price: $2.52 Source: http://www.tooloutfitters.com/t50-tamper-proof-torx-bit-3-8-sq.dr.-bit-holder.html