Knobs and handles for doors and drawers, The screw hole is reinforced with 3 perimeters, I recommend when softening the layers at the top and rounded parts, they look better

Update!!!   Added stl model files

Here you will find the 2nd edition : 

https://www.printables.com/cs/model/178867-knobs-and-handles-for-doors-and-drawers-2edition

And another 3 new collections of knobs of different shapes - patterns, round and square :

https://www.printables.com/cs/model/310875-knobs-and-handles-for-doors-and-drawers

https://www.printables.com/cs/model/310882-knobs-and-handles-for-doors-and-drawers

https://www.printables.com/cs/model/310900-knobs-and-handles-for-doors-and-drawers

And two collections of large handles :

https://www.printables.com/cs/model/310860-furniture-handles

https://www.printables.com/cs/model/310829-furniture-handles