3 ms·

https://www.woodmagazine.com/wood-supplies/fasteners-hardware/what-are-robertson-screws https://www.woodmagazine.com/wood-supplies/fasteners-hardwar... First I

• frosted-flakes 5y ago
  Nope. It's a tapered square. One of the few driver bits where you can put a screw on the end of drill, then hang/swing the drill from the screw alone. A slotted driver will not work, at all. (I'm Canadian. Robertson is the most common driver type here, except for imported products.)