Abrasive Grinders: Required PPE - BLR safety blrMar 28, 2011 . Abrasive Grinders: Required PPE - Safety News on Machine Guarding.safety equipments for grinder,Use of Portable Grinders : OSH AnswersWhat safety precautions should you follow when using a portable grinder? . grinders. Ensure that a machine will not operate when unattended by checking the.