3 The Castle 3 Degree System
The Castle 110 has been designed to produce pockets joints with a 3-degree angle
that virtually eliminates shifting and misalignment while assembling your work. The
Castle 3-degree system requires the use of “Cheese” head pocket holes screws with
a Torx drive head. Note: Square drive or washer head pocket screws are not
compatible with the Castle 3-degree system as the Torx drive is necessary to
maintain proper alignment when the screws are installed.