Graph Gear 1000 Automatic Drafting Pencil (0.7mm), Blue Accents Pentel Co., Ltd. is a privately held Japanese company which produces stationery products. The name is a combination of the English words pen and tell. Pentel is also the inventor of non-permanent marker technology.
From the Manufacturer
Click the automatic drafting pencil top to reveal an extra-long 4mm fixed sleeve. Click the pocket clip to release the heavy spring mechanism and retract the tip. Finely chiseled metallic grip is inlaid with soft rubber pads to cushion fingertips. Automatic pencil is refillable with Pentel's Super Hi-Polymer Lead and Z21 refill eraser.