I've heard lots of reasons ... but them not rolling off the workbench makes the most sense to me.
Pencils are useful things and we thought it was time we had some of our own. We didn't want some cheap and low quality "promo" pencil. We wanted these to represent Tinker and Fix and so we went to Chambers Pencils in Nottingham.
Chambers Pencils have been making pencils in Nottingham for over a hundred years - and are still family run. I figured they'd known a thing or two about pencils.
So here you have our Carpenter's Pencils. Matt black with white print. Sold in packs of three and shipped unsharpened.