Spacers, keyways, and a nut are included.
1″ from the top of the shoulder to the bottom of the nu.
Used to hold saws or small cutters.
3/4″ is the diameter of the shank.
Arbor Diameter: 1 inc.
Shank that is straigh.
Hardened and ground throughout to ensure the highest possible concentratio.
Arbors that are designed to fit directly into standard end mill adapters are available.
The listing should have stated whether the nut threads were LH or RH; I needed RH.
In any case, I checked the spacers and found that they needed to be deburred with diamond ground stones before being flat at the worst 0.0003 TIR and average about 0.0002 TIR, which is quite good. Despite the fact that the concentration was checked in a 5C collet, the TIR was too high. Face and concentricity TIR are likely to be adequate for a home shop, with 0.001 being the minimum acceptable value. There is some roughness to the skin on the face. The 1.0d stub had a measurement of 0.9996.
