Uni Mitsubishi Hi-Uni 4B Pencil – Box of 12 | Extra Soft Graphite for Sketching & Deep Shadow Work

Uni Mitsubishi Hi-Uni 4B Pencil – Box of 12

Bold. Dark. Expressive. The Uni Hi-Uni 4B is the pencil for artists who want to make a statement on paper. Softer and darker than 3B, the 4B grade delivers a dramatically rich graphite tone that responds to the lightest touch — perfect for deep shadow rendering, loose gestural sketching, dramatic portrait work, and large-scale tonal studies. Crafted in Japan by Mitsubishi Pencil Co., it brings the Hi-Uni’s unmatched smoothness to one of the most expressive grades in the range.

✦ Key Features

• 4B Extra Soft Grade – Bold, Dark, Expressive: Significantly softer and darker than 3B, the 4B lays down a dramatically rich graphite tone with minimal pressure — ideal for deep shadows, bold gestural strokes, and large tonal areas
• Ultra-Smooth Graphite Core: Hi-Uni’s proprietary graphite formula delivers a luxuriously smooth, drag-free stroke — even at this extra-soft grade, the line feels controlled and consistent
• Superior Blendability: The extra-soft graphite blends and smudges effortlessly with a stump, tortillon, or fingertip — creating seamless tonal gradients from deep black to delicate mid-tone
• Break-Resistant Lead: Advanced core-bonding technology keeps the soft graphite core firmly centered, significantly reducing tip breakage during bold, expressive strokes
• Premium Japanese Cedar Casing: Sharpens cleanly to a fine point; fine-grain cedar ensures a smooth, consistent sharpening experience and a satisfying studio feel
• Box of 12: Presented in the iconic Hi-Uni gold-foil box — a complete professional set ready for the studio, life drawing class, or location sketching

✦ Specifications

• Brand: Uni Mitsubishi (Japan)
• Model: Hi-Uni
• Grade: 4B
• Quantity: 12 pencils per box
• Best For: Deep shadow rendering, expressive figure drawing, portrait work, large tonal studies, charcoal-style effects
• Origin: Made in Japan

✦ Frequently Asked Questions

Q: What is the difference between 4B and 3B or 2B in the Hi-Uni range?
A: The higher the B number, the softer and darker the pencil. 2B is a popular all-round soft grade; 3B is darker and more expressive; 4B goes further still — depositing a noticeably richer, deeper tone with very little pressure. Artists use 4B when they need the darkest shadows in a drawing or want a bold, gestural quality to their marks.

Q: Is 4B too soft for detailed linework?
A: The 4B is best suited for tonal work, shading, and expressive strokes rather than fine detail lines. Most artists use it alongside harder grades — for example, H or HB for structural lines and 4B for the deepest shadow areas. This combination creates a full, dynamic tonal range in a single drawing.

Q: How quickly does a 4B tip wear down?
A: Soft grades like 4B wear down faster than hard grades because the graphite is less dense. However, the Hi-Uni’s break-resistant core means the tip wears gradually rather than snapping — and many artists actually prefer a slightly worn 4B tip for broader, more expressive shading strokes.

Q: Does the 4B smudge easily?
A: Yes — intentionally so. The extra-soft graphite smudges readily, which is a feature for blending smooth tonal transitions and atmospheric effects. Always rest your hand on a clean sheet of paper while working, and apply a fixative spray to protect finished artwork.

Q: How does the Hi-Uni 4B compare to Faber-Castell 9000 4B or Staedtler Mars Lumograph 4B?
A: The Hi-Uni 4B is consistently rated as the smoothest and most consistent soft-grade pencil in its class. Professional illustrators and fine artists frequently cite it as superior to both the Faber-Castell 9000 and Staedtler Mars Lumograph at 4B — delivering a richer, more uniform tone with less grittiness.

Q: How many pencils come in the box?
A: Each box contains 12 Hi-Uni 4B pencils in Mitsubishi’s signature gold-foil presentation box.