Support base for toolholder of a milling drum

摘要

A support base (1) which is to be mounted to the surface (2) of a milling drum (3) defining a direction of rotation (31) includes a recess (4) adapted to receive removably a shank portion (14; 21) of a body (5; 7) to be fixedly mounted to said support base (1). The recess (4) has a first side surface (101) facing into said direction of rotation (31) which is adapted to contact said shank portion (14; 21). The support base (1) further includes a reaction surface (111) adjacent to said first side surface (101) and also facing in said direction of rotation (31), wherein the reaction surface (111) is disposed at an angle of more than 180° with respect to said first side surface (101) and is adapted to bear against a support surface (151) of said body (5; 7).