Hold-In-Hold-Down-Restraint Published November 20, 2012 at 310 × 407 in Featherboard Techniques: Hold-in and Hold-Down Rabbet and Dado Cutting Support Restraining pieces with featherboards with a hold-in and hold-down configuration makes dado cutting safer and more accurate. A combination of hold-in and hold-down restraint ensures safer operation and more accurate results with a dado blade.