Step Drill for Plunger Latches (Single Pack)

This step drill by make-2-fit is constructed of hardened steel and features two diameters in one, for specifically for use when installing aluminum screen plunger bolts. It is used to drill 2 different diameter holes in one single pass for installation of screen plunger bolts into the screen frame. The drill diameters include a 1/8 in. and a 7/32 in. bit diameter, and the larger diameter is only intended to pass one layer of the hollow aluminum screen frame. For best results, follow the installation instructions included with each package.