"Steve Walker" wrote in message
news

On 06/04/2018 17:44, Tim+ wrote:
David wrote:
On Fri, 06 Apr 2018 16:37:42 +0000, Tim+ wrote:
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?
Can't advise on thickness but if you do want a thick one, how does 5.6mm
sound?
KOH-I-NOOR 5.6mm Diameter Mechanical Clutch Lead Holder Pencil - Yellow
https://www.amazon.co.uk/dp/B008IHL2..._Hg6XAbKQMM4TM
Tim
:-)
Yes, I did some research before asking the question.
I would just buy one and try it. Gotta be a reason why carpenters pencils
are so big.
I thought that they were just normal thickness, but wider to stop them rolling away.
SteveW
While widely believed and often suggested, for that to be true there would need to be
some reason why carpenters' pencils are more inclined to roll away than pencils used by
anyone else.
"Roofers" pencils maybe.
Because they have a chisel edge, rather than a round point they can't be picked
up and gripped just any-old-how like a normal pencil with a point. They have to be
gripped in a specific way with the chisel edge pointing along the line to be drawn.
Having an irregular shaped barrel, in whatever form makes easier to do this.
michael adams
....