0.7mm笔尖是指钢笔或签字笔的笔尖,相当于铅笔笔芯是o.7mm。

常见的笔尖大小,主要有五种,由细到粗分别为 :

EF=XF=Extra Fine 笔尖的宽度约:0.24mm~0.28mm

F=Fine 笔尖的宽度约:0.28mm~0.34mm

M=Medium 笔尖的宽度约:0.34mm~0.44mm

B=Broad 笔尖的宽度约:0.44mm~0.54mm

BB=Double Broad 笔尖的宽度约:0.66mm~0.86mm