Area 419 Zero Sizing Die Mandrel Kit Features The Area 419 Zero Sizing Die Mandrel Kit for 7mm is built around a core part of the Zero Sizing Die design a precision ground full length mandrel intended to deliver the greatest consistency in neck tension. These mandrels were designed from the outset to be interchangeable giving the reloader full control over selecting the exact amount of neck tension that works best for their rifle and bullet combination. Each mandrel is ground from 17-4PH stainless steel and finished with a black nitride coating for smooth operation and long term durability under repeated use. This combination of precision grinding and a hardened finish ensures consistent sizing results firing after firing. Each kit includes four mandrels which combined with the mandrel that ships standard with a Zero M-Series or S-Series die give reloaders access to 0.0005 inch neck tension increments ranging from 0.0005 to 0.0025 inches. This range lets precision shooters experiment and settle on the exact tension that produces the best accuracy from their particular rifle. A spare decap pin is included in every kit just in case one is needed during a reloading session. The Area 419 Zero Sizing Die Mandrel Kit is a focused high quality upgrade for 7mm reloaders chasing the finest possible accuracy. Area 419 Zero Sizing Die Mandrel Kit Specifications Manufacturer: Area 419 Model: Zero Sizing Die Mandrel Kit Caliber: 7mm Color: Black Nitride Material: 17-4 PH Stainless Steel Dimensions: 4 x 4 x 1 Weight: 0.50 lbs Available At: GrabAGun