Ingersoll-Rand no.8 pedestal grinder : for squaring off and grinding rock drill shanks, for dressing rock drill bits and reaming the hole in shanks of hollow drill steel
Title
Ingersoll-Rand no.8 pedestal grinder : for squaring off and grinding rock drill shanks, for dressing rock drill bits and reaming the hole in shanks of hollow drill steel / Ingersoll-Rand Company