Diehl Steel has introduced Ready-Block EDM Blanks for EDM applications. The ready-to-use blanks are pre-hardened, squared and ground at Diehl Steel, eliminating the need for customers to machine and heat treat them prior to use. They are available in many popular tool steel grades including in-stock AISI A-2 and D-2 (RC 58-62). Each block is first precision machined to a specific thickness, width and length, within +.010”/.020” tolerance. They are then hardened and tempered to a standard hardness. A starter hole is included at the customer’s request.