These Osborne setting dies are forged from superior-grade steel. Use for setting #6 plain grommets and tooth washers by hand.
Product Note: Setting dies are guaranteed against defects in material and craftsmanship, but this guarantee is not intended to cover tools against wear and tear, over-strain, and steel hammering. To obtain maximum life of tools, use a dead blow hammer, rawhide mallet, and urethane cutting pad . Strike at a 90-degree angle.