Conclusion: For office workers, the lot drawing or for educational developments of this Spitzer is a must. One does not have great turn by hand but it's all well automatically set except the size. Suffice it a gentle push and bang the Spitzer is working on and the pen again spitz.Leider has pointed a catch. The rotation pays is just too high you have to pin his good hold when peaks. Otherwise good sharpener. Also ideal for home use with children. With 2 children quickly ne quantity pins come together when painting. Strong buy recommendation. 1 star deduction for the price and the high speed!