Frankford Arsenal Stainless Steel Dial Caliper with Case for Reloading ACCURACY: Accurate to within .001 when measuring case length, neck and base diameters, overall length and primer pocket depth with 0-6 measurement range VERSATILITY: Use for measurements on and off the reloading bench DURABLE: Constructed of stainless steel CONVENIENT: Quick and easy measurement and reading INCLUDES: Calipers and a heavy-duty protective case