POLISHING BRUSH AND POLISHING METHOD

摘要

A polishing brush (1) comprises a plurality of linear abrasive materials (32) formed by hardening an aggregate yarn of inorganic filaments by a resin binder, and a holder (2) for holding the plurality of linear abrasive materials (32). The linear abrasive materials (32) are held by a base (31), and the base (31) is secured to a spindle (25) inside the holder (2). Inside the spindle (25), a flow path (28) through which a liquid cutting agent is discharged toward the side on which the free ends (33) of the linear abrasive materials (32) are located is formed.