General tools specializes in bringing customers with high quality, specialty items for jobs of all types. This easy-to-use General Tools 1/2 inch solid-brass Grommet Kit provides an economic solution for repairing tarps, pool covers, canvas tents, awnings and much more. Centering cone on mandrel helps ensure grommet pieces match accurately. Easy-to-use kit includes 12 grommets, a hole cutter, a matched mandrel and anvil pair, a backer block and grommet refills.