Centre Lathe Accessories - Standard solid mandrel
 
The standard solid mandrel is generally made of tool steel which has been hardened and ground to a specific size and is ground with a taper of 1:2000.

It is pressed or driven into a bored or reamed hole in a work piece so that it can be mounted on a lathe. The ends of the mandrel are machined smaller than the body and are provided with a flat for the clamping screw of the lathe carrier. This preserves accuracy and prevents damage to the mandrel when the lathe carrier is clamped on.

The centres made in these mandrels are ‘B’ type i.e. protected centres. In such centres the working portion is deep and does not get damaged while handling.