"David" wrote in message
...
On Fri, 06 Apr 2018 17:36:09 +0100, Jim GM4DHJ ... wrote:

On 4/6/2018 4:45 PM, 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?


Cheers



Dave R


use a grinder

Angle or smart phone App?



I know nothing of the app you talk of ......