Troy Bilt Sickle Bar Ledger Section part# P406655 has a base that is 2" wide. The cutting edges are also 2" long on this knife section.(Overall length 2 7/8") There are two 1/4" holes that are counter sunk for fastening the section to the cutter bar. We do not have a list of models that use this ledger section, so please refer to your owners manual for the correct part number for your machine.