Description The Pentel Sharp Mechanical Drafting Pencil in Metallic Sky Blue uses .7mm pencil lead, and uses superior construction to meet the rigorous demands of professionals and students alike. The 4mm tip design makes it ideal for use with rulers and templates. The Pentel Sharp mechanical drafting pencil can be refilled with Hi-Polymer Lead and uses the Z2-1 eraser refill. We offer Free Shipping on all orders over $59 for US customers, and for orders over $250 for our Canadian customers.