Kit for HON file cabinets F24 & F28 style using E-Series removable key plugs - supplied keyed different or keyed alike with 2 keys per kit. Includes parts shown - also includes adapter plate for older file cabinets. Click on the pdf file for installation instructions. This F24 kit fits the following knockout dimensions: the Hon knockout measures 5/8" side to side (horizontal), and 3/4" top to bottom (vertical). Key plug IS extractable with CKHON key-tool (Not Included).