Uni Shift Pipe Lock Mechanical Pencil

Uni Shift Pipe Lock Mechanical Pencil

The Uni Shift Pipe Lock mechanical pencil is an engineering marvel crafted for drafters, architects, and designers on the move. Featuring an innovative telescoping shift-lock mechanism, the metal guide pipe completely retracts into the barrel when not in use, protecting the delicate drafting sleeve from bending and preventing pocket tears.

Key Features

• Retractable Shift Pipe Lock: A simple twist-and-extend motion deploys the sturdy 4mm guide pipe for precision drafting, then retracts it securely inside the metal grip for safe travel.
• Precision Knurled Metal Grip: Fine cross-hatched knurling provides a cool, tactile, non-slip hold that ensures maximum control during intricate linework.
• Low Center of Gravity: Weighted toward the knurled front section, promoting optimal balance, fluid penmanship, and minimal hand fatigue during marathon sessions.
• Color-Coded Accent Rings: Distinct color ring accents beneath the knock mechanism identify lead diameters quickly in multi-pen setups and drafting kits.
• Drafting-Grade 4mm Sleeve: Offers an unobstructed line of sight against straightedges, set squares, and architectural drafting rulers.

Specifications

• Brand: Uni Mitsubishi Pencil
• Series: Shift Pipe Lock Series (M-1010)
• Lead Sizes Available: 0.3mm, 0.5mm, 0.7mm, 0.9mm
• Grip Material: Knurled aluminum alloy
• Mechanism: Telescoping shift-lock with knock-advance button
• Guide Pipe: 4 mm fixed drafting sleeve (retractable via shift mechanism)
• Country of Origin: Japan

Frequently Asked Questions

How does the shift-lock mechanism work?

Hold the upper body and twist the lower knurled metal grip to extend the drafting pipe. Once extended, the mechanism locks rigidly in place for wobble-free drawing. Twist and push back to safely retract the sleeve.

Why is a retractable guide pipe important?

Long 4mm drafting guide pipes are prone to bending if dropped or caught in bags. Retracting the pipe inside the heavy metal grip prevents damage and eliminates pocket punctures.

What lead refills does the Uni Shift take?

It takes standard graphite lead refills corresponding to each model's designated diameter (0.3mm, 0.5mm, 0.7mm, or 0.9mm), such as Uni Smudge-Proof or Uni NanoDia leads.

Does it include an eraser?

Yes, removing the push-button knock cap reveals a replaceable drafting eraser for convenient corrections.

Is the body all metal?

The front grip section and guide sleeve are machined metal for a front-weighted balance, while the upper barrel is crafted from high-durability lightweight resin.