The Ryobi Tek4 right angle screwdriver was one of the last Tek4 tools released before the line was discontinued. After six years of searching, one finally popped up on eBay NIB. So
RYOBI TEK4 Digital Key Lock Box – Ryobi Deal Finders
Amazon.com: Ryobi HP54L 4V Lithium Ion 600RPM 1/4 Inch Hex Chuck Compact Quickturn Screwdriver (4V Lithium Ion Battery and Charger Included) : Tools & Home Improvement
Ryobi TEK4 AllPlay Revisited: The MP3 Player for Those Who Play Hard and Hate Charging Batteries - GeekDad