- All of our tool steel, Freemax and 4140 PH is decarb free and oversize to ensure clean up at stated nominal sizes. Flat bars and Plates are ground oversize top and bottom to a uniform decarb free finish, while widths and lengths are sawcut oversize. Precision Ground Flat Stock and Drill Rod are sold in specific lengths but all other products can be cut to size so you only have to buy what you need.