Rotring 600 3-in-1 Multicolor Pen and Mechanical Pencil, 0.5mm Lead, Black Barrel | Professional Drafting & Writing Tool

• 3-in-1 multicolor pen and mechanical pencil makes changing writing modes quick and easy
• Brass mechanism delivers precision lead advancement
• Fixed lead guidance sleeve prevents breakage and offers an unimpeded page view for precise ruler-based drawing
• Hexagonal barrel ensures fatigue-free writing and drawing and prevents the tool from rolling even on inclined drafting tables
• Metal knurled grip keeps writing instrument from slipping out of your hand
• Smart and stylish black barrel gives drafting pencil modern look
• Filled with ballpoint pen ink refills in red and black, plus 0.5mm mechanical pencil lead

• To switch modes, locate the rotating selector at the top of the pen. Twist it to align the desired mode indicator (black pen, red pen, or pencil) with the top marking. — Select Writing Mode
• Once the desired mode is selected, press the clip down to extend the pen tip or the 0.5mm mechanical pencil lead. Release the clip to retract. — Extend Pen or Pencil
• For the mechanical pencil, ensure the selector is aligned. Press the clip to extend the 0.5mm lead. If the lead is depleted, refill through the top mechanism following standard mechanical pencil procedures. — Use Mechanical Pencil
• When ink runs low, unscrew the top section. Carefully remove the old ballpoint refill and insert a new compatible Rotring refill, ensuring it is seated correctly before reassembling. — Replace Ink Refills

Typical situations where Rotring 600 3-in-1 Multicolor Pen and Mechanical Pencil helps — illustrative scenarios, not customer reviews.