This Comfort-Grip Mortise Cam Screwdriver #1 Phillips is the perfect screwdriver to remove those stubborn Mortise Cam Screws from the back of a mortise cylinder. The over-sized cushion-grip handle allows you to comfortably bear down on the screws to avoid stripping the soft heads. There is also a hang-hole that you can insert a rod through for extra leverage. Features a precision-machined hardened tip for an exact fit. Blade length (inches): 2.95". Tip size: #1. Shank size (inches): 0.20", Overall Length: 7.75".