The diamond crystals and bonding matrix are heated and shaped into specially engineered rims or segments. These rims / segments are wider than the blade core to which they will be attached, and provide the clearance to promote material discharge and discourage blade binding. The rims / segments are specifically designed to wear at a rate appropriate to the material being cut. Large particles of soft, abrasive materials wear down the matrix faster than the small particles removed from hard dense materials. Therefore, softer, more abrasive materials require a “tough to wear” (hard) bond; less abrasive materials require an “easy wear” (soft) bond.