SCRIBING WHEEL, HOLDER UNIT AND SCRIBING APPARATUS

摘要

Provided are a scribing wheel, a holder unit, and a scribing apparatus proper in dividing tempered glass. The scribing wheel (40) including multiple groove parts (44) formed on a blade (42) for dividing a tempered glass substrate has depth (H) of the groove parts (44) of 1-5μm, and width (W) of the groove parts (44) of 2-35μm, and includes a groove ridge part (47) extended in the direction same to the ridge direction A of the end of the blade (32) on the groove parts (44) to be extremely proper in dividing the tempered glass substrate (17).