M00015328
New product
ISO 9177-2:2022 Mechanical pencils for technical drawings - Part 2: Black leads - Classification and dimensions
standard by International Organization for Standardization, 06/01/2022
In stock
Warning: Last items in stock!
Availability date: 10/15/2023
This document specifies a classification and dimensions for black leads used for mechanical pencils for technical drawings.
Two types of black leads are available: polymer leads (designated by the letter "P");