Item#:506500 - Use this three-in-one slot punch for standard name badges and ID cards
(9/16" x 1/8"). This handy office assistant punches 1/4" holes, slots
(1/8" x 1/2") and rounded corners (3.5mm) through up to 20 sheets of 20
lb. paper. Slot punch rounds sharp corners for a great finish on paper
and plastic cards, lamination and presentations. Center guide adjusts to
1/8" increments for accurate hole centering. Alloy punch heads provide
durability. Features clipping receptacle.

Specifications:

Slot punch options 

1. oval
2. round
3. corner rounder

Oval slot size: Approximately 1/8 x .50"  or 3 x 14mm

Contains an adjustable slide guide

Punch out tray