The Orenz Nero is a 0.5 mm mechanical pencil from Pentel’s Orenz Nero series. Its Orenz System uses a sliding guide pipe to protect the lead as it wears, while the automatic lead-advance mechanism advances lead after one initial knock. The pencil has a low center of gravity and a 12-sided barrel made from a special blend of resin and metal.
Features
Automatic lead-advance mechanism: knock once to start, then lead advances automatically.
Sliding guide pipe protects the lead as it wears.
Black body; 18 g. Dimensions: 10 mm barrel diameter × 11 mm depth × 143 mm length.
Materials: tip and knock mechanism—brass; front barrel—nylon and iron; rear barrel—ABS; clip—iron.
How to Use
Knock once to extend the guide pipe, then write without extending the lead. After use, knock and press the tip in to retract the pipe. When the remaining lead is low and the pipe begins to retract repeatedly, knock several times and remove the lead promptly.