ROTARY SLOT CUTTING TOOLS, INSERTS THEREFOR AND A METHOD OF ASSEMBLING CUTTING INSERTS INTO A ROTARY SLOT CUTTING TOOL

摘要

A rotary slot cutting tool having a flat sided disc shaped body with a central bore (21), a plurality of apertures spaced about the periphery of the body each aperture (16) having in it a cutting insert (11), held in position by the shape of the aperture against radial movement, each aperture being shaped in such a manner that on the application of a force (29) acting radially outwards on the circumference of the bore (21) of the body, faces (25 and 26) of the aperture are caused to spread apart to permit removal and replacement of the inserts (11) in an axial direction.