What is the IDOD, what does it do? The IDOD name means, ID and OD meaning it cuts the Inner Diameter and the Outer Diameter. When you cut both the inside and outside in one operation, this eliminates any "donut" that wants to naturally form with conventional mandrel type turning systems that have been out for years. It also ensures there is little to no case neck thickness variation that you would see with just cutting the outside of the neck.

When you cut necks on a mandrel type turning lathe, you fight the balance of having too much clearance from the neck and the turning mandrel and having the case "wobble" on the mandrel and not give a consistent cut. You also can have issues where you don't have enough clearance and your case is too tight on the mandrel and creates heat and friction to where you can't achieve a consistent neck thickness all the way around. You also must use lubrication when turning this method, but with our IDOD, you do not need any lube.