Uni Kuru Toga Advance M5-559 Mechanical Pencil

Precision Drafting with Double-Speed Lead Rotation

The Uni Kuru Toga Advance M5-559 elevates technical drafting and everyday note-taking through Mitsubishi Pencil's upgraded W-Speed rotation mechanism. While conventional pencils wear down into an uneven wedge that smudges and produces inconsistent line weights, the Advance rotates the graphite core by 18 degrees with every pencil stroke—twice the speed of the standard Kuru Toga. This rapid 20-stroke complete revolution keeps the 0.5 mm lead continuously tapered to a sharp conical tip, resulting in remarkably crisp, dark, and uniform lines across dense mathematics, kanji characters, or detailed architectural linework.

Key Features

• W-Speed Auto-Rotating Engine: Rotates the lead 18° upon each page contact, maintaining a centered cone tip and reducing graphite powder dispersion.
• Retractable Sliding Pipe Guide: Fully protects the 0.5 mm lead from breakage during heavy pressure and retracts gradually as you write for extended uninterrupted sessions.
• High-Precision Metal Accents: Fitted with a refined punched-metal front nose cone and a sturdy chrome pocket clip for enduring daily carry.
• Visible Engine Window: Transparent lower barrel section displays the internal rotation gear turning with every stroke.
• Integrated Clean-Up Eraser: Includes a replaceable mini eraser tucked beneath the push-button knock cap.

Specifications

• Brand: Uni (Mitsubishi Pencil)
• Model: Kuru Toga Advance (M5-559)
• Lead Size: 0.5 mm
• Rotation Angle: 18° per stroke (20 strokes per full 360° rotation)
• Body Material: Durable ABS resin with metal nose cone and clip
• Grip Diameter: Approx. 10.7 mm
• Overall Length: 143 mm
• Origin: Made in Japan

Frequently Asked Questions

Q: How does the Advance W-Speed mechanism differ from the original Kuru Toga?
A: The standard Kuru Toga rotates 9 degrees per stroke (requiring 40 strokes for a full turn), which suits long Western cursive. The Advance doubles that to 18 degrees per stroke (completing a rotation in 20 strokes), making it significantly better for quick strokes, print handwriting, technical drafting, and lighter writing pressure.

Q: Can I use standard 0.5 mm mechanical pencil leads?
A: Yes, any standard 0.5 mm replacement lead fits the M5-559. For optimal sharpness and minimal crumb, Uni's proprietary NanoDia or Smudge-Proof high-density leads are recommended.

Q: Does the sliding pipe guide fully retract for pocket safety?
A: Yes, gently pressing the knock button while pressing the tip against a flat surface locks the metal guide sleeve flush inside the nose cone, preventing snags and pocket punctures.

Q: What is the store's fulfillment and customer support policy?
A: All orders are inspected and packaged directly from our regional fulfillment center. Full refunds can be requested at any time before shipment confirmation. For any order-related inquiries, contact our customer service team at szjyf@outlook.com.