The carbide flat end tool is designed for use with the Roland DGA DWX-50. The extended reach allows you to mill material 10mm to 26mm in thickness, and is approved for milling zirconia, wax, and PMMA, and some nano-ceramic materials. This endmill is used for a variety of applications like milling small abutments, frameworks, to models.
The carbide ball end tool is a 0.3mm, long reach dental bur designed for use with the Roland DWX-52D, DWX-51D, and DWX-4 dry mills. This carbide bur is approved for milling zirconia, wax, and PMMA (although diamond coated tools are recommended for zirconia for extended life). This larger bur is used mainly during the roughing portion milling of dental prosthetics.