Macro Economics, Micro Burrs: Get a Handle on Cost per Part, Set a Target May 3, 2018 The mindset that should accompany decision making about how best to deburr parts should depend on establishing a target for cost per part. That’s the sage advice of LaRoux Gillespie, Dr. Eng, FSME, CMfgE, PE, a past president of SME and author of 13 books on burrs and deburring.