The RCBS Hand Case Neck Turner is designed to "peel" the brass from the outside of your case necks to a consistent thickness. Most commercially available brass has variances in the case neck thickness. This leads to case neck concentricity and bullet run-out issues. Truing up the case neck produces more consistent and accurate hand loaded ammunition. The cutter portion uses calibre specific pilot/mandrels (sold separately) to guide the case neck. The cutter design features the ability to "zero" the cutter to the pilot/mandrel and then use the micrometre adjustment to dial the desired case neck thickness in 0.0005 inch increments. The cutter can also be set for right or left hand use. Technical Information: Material: Steel Calibre Sizes Accepted: 17-50 Calibre Pilots Used: RCBS (sold separately) Accuracy: 0.0005 inch Features: Ergonomic case holder Right or left handed use Micrometer adjustable Ability to zero the cutter to the pilot/mandrel
