Slotting machine is suitable for punching holes for employee certificates, passes, mobile phone films, various certificates, etc., with strong practicability. Suitable for use at home, office, school, etc. Wide range of uses, it is an assistant for all kinds of manual punching machines. The id slot punch is made of heavy metal material, the metal structure is firm and does not rust, is resistant to falling, has strong penetration, high punching quality, durable, and will not be damaged after long-term use. Unique design allows you to punch holes in your hand or table. The punch can punch up to 15 sheets at a time, with an elliptical aperture of 0.6 x 0.16 inches (15 x 4 mm), accurate vernier positioning, and a sharp cutter head that is not easy to jam. NOTE: The handle of the punch will come loose if the paper is accidentally jammed, but this does not mean the punch is broken. Pull the two handles apart to restore