Does the tip retract? I'm worried about putting it in my pocket.

It does not retract. I've got three of these for each jacket I wear so I don't worry about forgetting to take a pencil. So far no problems with the tip...

is the body and cap a metal material

No the body and eraser cap are plastic material. However the grip, the end cap, and the lead sleeve seem to be metal.

Do you need to buy a special kind of lead for it?

Any 0.5mm lead will work, but the specific Kurotoga lead is softer on the outside and is purportedly more effective with the mechanism. For very dark writing, I prefer Neox lead but it can smudge/smear a little. My second favorite is Ain Stein lead, which almost never smudges and lasts a little longer (not quite as soft as Neox).

How durable is this? I am a graduate student in EE and math and break so many of the best mechanical pencils from staples and other office stores.

I actually bought this mp to add to my mechanical pencil collection. I now have about eight mps, all different. Therefore, I could not provide any info regarding its durability. I can say that this is a beautiful, finely crafted instrument. It may be the best in terms of appearance. I really don't think you would go wrong if you selected this one. Best of luck!!

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uni Core Keeps Sharp Mechanical Pencil, Gun Metallic (M510171P.43)

uni Core Keeps Sharp Mechanical Pencil, Gun Metallic (M510171P.43)

Product ID: 4042163

Details

Age Range (Description)
Adult
Brand
三菱鉛筆
Color
Gun Metallic
Ink Color
Black
Writing Instrument Form
Mechanical

🔄Lead rotates for consistent sharpness

🖤Gun metallic sleek, durable body

⚙️Precision Kuru Toga Engine tech

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Description

✍️ Write sharp, think sharper — the pencil that keeps up with your hustle.

SAVE LEAD SAVE SPACE - The rotating core means finer, consistent lines that reduce lead breakage and maximize your writing surface—smart and sustainable.
SUBTLE YET STRIKING DESIGN - Minimalist window reveals the iconic spinning mechanism, adding a touch of tech-cool without distracting from your professional vibe.
SOPHISTICATED GUNMETAL FINISH - Stand out in meetings with a pencil that’s as stylish as your ideas—matte metallic body with a textured grip for a premium feel.
EFFORTLESS PRECISION EVERY STROKE - Kuru Toga’s patented rotating lead tech keeps your lines razor-sharp and uniform—no more smudges or blunt edges.
BALANCED WEIGHT FOR ALL DAY COMFORT - Engineered with a perfectly centered weight, this pencil feels like an extension of your hand, ideal for marathon brainstorming sessions.

The Uni Core Keeps Sharp Mechanical Pencil features innovative Kuru Toga Engine technology that rotates the 0.5mm lead incrementally to maintain a consistently sharp tip. Crafted in Japan with a sleek gun metallic body and a soft ribbed grip, it balances weight perfectly for comfortable, precise writing. Ideal for professionals and students alike, this pencil delivers smooth, fine lines that enhance clarity in detailed work like math and physics, while its durable design promises long-lasting performance.

Specifications

ASIN	B004OHNTVC
Additional Features	Soft Grip
Age Range Description	Adult
Best Sellers Rank	#25,782 in Office Products ( See Top 100 in Office Products ) #186 in Mechanical Pencils
Body Shape	Round
Brand Name	三菱鉛筆
Closure Type	Retractable
Color	Gun Metallic
Customer Reviews	4.7 4.7 out of 5 stars (8,950)
Drill Point	Fine
Global Trade Identification Number	04902778129494
Grip Type	Ribbed
Hand Orientation	Ambidextrous
Hardness	HB
Included Components	Mechanical Pencil
Ink Color	Black
Item Diameter	0.5 Millimeters
Item Dimensions	5.7 x 0.4 x 0.5 inches
Item Type Name	Uni Mechanical Pencil, Kuru Toga Roulette Model 0.5mm, Gun Metallic (M510171P.43)
Item Weight	13.61 g
Line Size	0.5 Millimeters
Manufacturer	Uni
Material Type	Metal, Plastic
Model Name	Mechanical Pencil
Model Number	M510171P.43
Recommended Uses For Product	Writing
Style	Gun Metaric Body
Unit Count	1.0 Count
Writing Instrument Form	Mechanical Graphite Pencil

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S/.58

Duties & taxes included

In stock

Sold byAmazon PeruDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Peru.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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