Wilson Case Holders hold the case square to the cutter face for trimming as well as inside neck reaming, case mouth deburring, and military crimp removal. Wedge securely holds the case in the Q-Style Pistol Case Holder. Quick and easy to use. This is the pistol case holder to choose when available. NOTE:Q type holders are not compatible with the Sinclair Sharkfin or the LE Wilson Case Holder Clamp Mfg: L.E. Wilson