On 06/04/2018 17:15, newshound wrote:
On 06/04/2018 16:45, David wrote:
Just tried to sharpen a builder's pencil and the two wood halves came
apart.

Pencil sharpener for normal pencils is blunt.

I am now considering a propelling pencil with a thick lead for use in
marking up work.

Anyone else doing this?

If so, which lead thickness?

There are several styles, here is a 2 mm one where you use an external
sharpener to create a point

https://www.amazon.co.uk/Faber-Caste.../dp/B0007OECAS

I haven't seen one of them for years - most mechanical pencils are the
kind where pressing the end advances the (thin) lead by a fixed amount.

Presumably the OP is using the term "propelling pencil" in a loose way
to refer to any kind of mechanical pencil. True propelling pencils you
screw to end to advance the lead - usually the lead is loose as there is
no clutch.

--
Max Demian