HJSplit - HJSplit is a popular set of freeware file-splitting programs created by Freebyte.
Free File Splitter - File Splitter is a handy freeware program which allows to easily split and merge files
GSplit - GSplit is a free file splitter that splits any file into smaller files called pieces. Lots of customization options, attractive and easy-to-use interface.
Unimus - Unimus is a Network Automation and Configuration management solution designed for fast deployment network-wide and ease of use. Unimus does not require learning any abstraction or templating languages, and does not require any coding skills.
File Splitter Joiner - File Splitter Joiner is the name of a free file splitter plus joiner or you can say merger.
Nawras Files Splitter - Nawras Files Splitter is a multiple file supported file splitter that can split any file and document if it is in RAR and ZIP format.