RCBS Hand Case Neck Turner Kit

The RCBS Hand Case Neck Turner Kit (RCBS part no. 90401) peels brass from the outside of a case neck down to a consistent thickness, correcting the neck-thickness variances that come standard in most commercial brass. RCBS built this tool to fix a real accuracy problem: uneven neck thickness causes case-neck concentricity issues and bullet run-out, both of which hurt group size. The cutter uses caliber-specific pilot and mandrel sets, sold separately, to guide the case neck as it cuts, and a micrometer adjustment dials the desired thickness in .0005-inch increments once the cutter is zeroed to the pilot. It can be set up for right- or left-handed use. This tool is aimed at precision handloaders truing up brass for more consistent, accurate ammunition rather than casual high-volume reloaders.

Key Specifications

• Sized for .40/10mm (.400-.401 in.) caliber pilots and mandrels.
• Peels brass from the case neck exterior to a consistent thickness, correcting variances in commercial brass.
• Uses caliber-specific pilot and mandrel sets, sold separately, to guide the case neck during cutting.
• A micrometer adjustment dials the desired neck thickness in .0005-inch increments once zeroed to the pilot.
• Can be configured for right- or left-handed use.

Frequently Asked Questions

Do the pilots and mandrels come included? No, caliber-specific pilot and mandrel sets are sold separately to match your cartridge.

Why turn case necks at all? Uneven neck thickness in commercial brass causes concentricity issues and bullet run-out; turning the neck to a consistent thickness corrects that.

Buy the RCBS Hand Case Neck Turner Kit

True up your brass for tighter, more consistent handloads. Order this RCBS kit from our Lubbock, Texas gun shop, where our full reloading equipment selection ships fast and insured.