This is a rugged tool... not in the same league as the pencil divider you used as a kid.
Made by the good folks at CS Osborne, you'll have this forever, and so will your kids. You can keep the extension point in place or remove and replace with a pencil.
Solid,the length locks in, perfect for spiling,
This tool works as intended, as provided (off the shelf). I could have made one but this one saved time.