B000789CDQ Martin Yale 1340PB Master 3-Hole Punches with Power Handle, 13/32″ Hole Diameter, Punches up to 40-Sheets of 20 lb. Bond Paper, Accepts 2 to 7 Punch Heads

Make sure this fitsby entering your model number. Power handle provides more leverage for easier punching Punche through up to 40 sheets of 20 lb. bond paper Adjustable punch heads for convenient 2 or 3-hole punching Margin depth guides adjust for custom punching needs