Malco HHA5 Arbor and Pilot Drill Set Quick change pilot drill with a tight, gripping hex shank. CT - Carbide Tipped Eject saw plugs with ease Pilot drill projects 1 in. past saw teeth for easy cutting in uneven surfaces like lap siding Hole saws work fast with the power of aggressive cutting carbide tipped teeth Use with one of Malco's 19 different size hole saws