If you want to use your favourite pencil down to the minimum, you need a silver pencil extender and why not a holder for your eraser too.
This extender is for 7mm pencils and , of course, you need a pusher rod for the eraser holder to push the stub out. All fully UK hallmarked including the Coronation Mark. My thanks to my client for permission to use the right hand image. I’ve made more stationery items.