N.B. Each kit is supplied as the components only and does not include the material / blank. Most kitchenware shops are now offering salt and pepper mills utilising ceramic mechanisms. The reason for this is that they are durable, adjustable and much more efficient than similar products. The CrushGrind® mechanisms that we sell are available as a shaftless version (CrushGrind Wood) and three versions with a shaft (CrushGrind Shaft). The shaft can be reduced in length for a shorter mill if required. CrushGrind® are like no other grinders, their unique ceramic mechanism allows you to grind almost anything, including salt, pepper, coffee, herbs and spices. The mechanisms are fully adjustable from fine to coarse with 14 settings in total and the ceramic parts are guaranteed for 25 years. No glues or screws are necessary for making the mills and a special recess tool from Crown is available for shaping the inside of the blank for insertion of the mechanism. Instructions available as a download.