3/16" AN426. Includes both die and punch. The unique shape of a spring back dimple die's face pushes the metal up slightly before the dimple is made, resulting in a cleaner, more precise 100° dimple. All punches and dies are 1/2" in diameter and 1/4" long
Made from hard steel (RC 65-66) and bi-metal construction, this hole saw kit is as tough as they come. Compare this unit to the average hole saw and you will notice 4/6 variable pitch teeth.