The RCBS Trim Mate Case Prep Center helps to make the tedious tasks of chamfering, deburring, primer pocket cleaning, military crimp removal and flash hole deburring quick and effortless. The five gear driven heads turn each tool so all the reloader has to do is hold the brass at the appropriate location until they are satisfied with the results. These accessories make the RCBS Trim Mate Case Prep Center a more versatile machine to meet many case prep requirements. Chamfer attachments are designed to put a slight bevel on the inside of the case mouth to make seating bullets easier. These slight bevels also help to ensure that bullets are seated with minimum run-out and without damaging the base of the bullet.