Abstract: A rotary cutter employs a disc blade removably mounted on a cylindrical bearing surface portion carried to upstand from adjacent one end of a handle and a swing arm movable between a retaining position in which it overlies the disc blade and a release position in which it is removed from overlying relation with the disc blade to permit removal thereof, wherein a first latch portion disposed adjacent the bearing surface portion and a second latch portion carried by the swing arm engaged to removably retain the swing arm in its retaining position.

Abstract: A handle, suitable for knives and other implements, which provides for adjustable length blades, etc. comprises an outer portion of a resilient high coefficient of friction material surrounding an inner chamber of more rigid low coefficient of friction material into which a blade tang or the like may fit. The chamber is configured such that the high coefficient of friction material may be forced into close contact with a blade tang or the like to fix this in variety of different portions.