GraphGear 500 Mechanical Drafting Pencil features a 4mm fixed sleeve for template work & technical drawings. Metallic-mesh grip delivers precision & control. The barrel is weighted at your fingertips for precise drafting & template work. Easily identify your lead type with the built-in lead hardness indicator. Preloaded with Pentel Super Hi-Polymer HB lead, the pencil never needs sharpening, is super-strong & produces a dark line. Drafting pencil offers a top click, stationary eraser & tip. Refill with Pentel Super Hi-Polymer Lead & Z21 refill eraser.