The SPC 4 (60) Filepecker twin spindle paper drilling machine is ideal for two hole and four hole ring binder drilling but can also drill single holes. Capable of drilling a 500 sheet stack of paper in two secounds.  The drill has adjustable back depth from 3 to 35mm and self centering side guides.  As standard the drill comes with 6mm drill bits fitted but there are optional bits sizes from 3 to 9mm. The SPC has an energy saving  feature as the motor only runs when the handle is pulled and auto shuts off when in the rest position.