“钢笔尖”用英语怎么说？

钢笔尖把纸戳穿了。The sharp nib scratched through the paper.那些钢笔尖头尾相接地放着.The pen nibs are placed head and points.他神情冷峻地写着, 钢笔尖重重地划着纸面.He worked solemnly along , his fountain pen tracing stroke after stroke on the page....