The Challenge Handy Drill Table Top paper drill is a hand lever operated machine. It has a 2.5" Drilling Capacity. The Handy Drill accepts 13 Hollow Drill Bit Sizes from 1/8" up to 1/2" (in 1/64" increments). The machine starts automatically when the hand lever is actuated. The back gauge is fully adjustable and the unit has a manual trip side guide for multiple hole drilling.