Glass filler-containing metal bond grinding wheel

Provides is a grinding wheel which has excellent grinding efficiency and enables stable grinding for a long period of time. A glass filler-containing metal bond grinding wheel (10) has a metal bond layer (14) that contains abrasive grains (11), a metal bond (12) and a glass filler (13). The glass filler-containing metal bond grinding wheel (10) is configured such that the abrasive grains (11) are composed of diamond and/or cubic boron nitride; the metal bond (12) is composed of a metal that contains Cu; the ratio of the volume of the glass filler (13) to the volume of the metal bond (12) is from 0.025 to 1.0 (inclusive); and the metal bond (12) and the glass filler (13) are mutually diffused. 提供：具有优异的磨削效率、能历经长时间地稳定进行磨削的磨石。含玻璃填料的金属结合剂磨石(10)为具有金属结合剂层(14)的磨石，所述金属结合剂层(14)含有：磨粒(11)、金属结合剂(12)和玻璃填料(13)。该含玻璃填料的金属结合剂磨石(10)中，磨粒(11)为金刚石和/或立方晶氮化硼，金属结合剂(12)为含有Cu的金属，玻璃填料(13)的体积相对于金属结合剂(12)的体积的比例为0.025以上且1.0以下，金属结合剂(12)与玻璃填料(13)相互扩散。