What refills fit this pencil and can you get them from amazon

This pencil uses a 0.5 mm lead which can be found on amazon.

What grade of lead is in the pencil ie H, HB

You can fit what you like as long as it is the correct size. I don't know what they arrive fitted with but if you look at any kits supplied with leads and erasers from UNI they are HB. Leads I have purchased have also been HB from UNI.

Does this come with any leads?

Mine came with a few leads in the pencil

What's the difference between the pipe slide model and the roulette model ?

If i have inderstood your question correctly, then, with the pipe slide model you rotate the pencil and with the roulette model the tips rotates itself with pretty much every stroke whilst you write.

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✍️ Write sharp, write smart — never miss a line with Kurutoga!

EFFICIENT LEAD USAGE - Uses only 50% of the lead area compared to traditional pencils, meaning longer-lasting writing sessions and fewer refills—smart, sustainable, and cost-effective.
SLEEK PROFESSIONAL DESIGN - Matte black body with a comfortable sleeve grip offers a modern, minimalist aesthetic that fits seamlessly into any executive or creative workspace.
CONSISTENT SHARPNESS ALWAYS - Kurutoga’s core rotation mechanism ensures your lead stays perfectly pointed with every stroke, delivering razor-thin lines that elevate your writing and drawing precision.
BREAK FREE WRITING EXPERIENCE - Innovative pipe slide system protects the lead length, drastically reducing breakage and keeping your notes clean and smudge-free—no more interruptions or frustration.
TRUSTED JAPANESE CRAFTSMANSHIP - From Uni Mitsubishi, a brand synonymous with precision and quality, this pencil is engineered for professionals and students who demand reliability and style.

The Uni Mechanical Pencil Kurutoga Pipe Slide Model 0.5mm features a patented core rotation mechanism that keeps the lead consistently sharp by rotating it with every lift. Its pipe slide system protects the lead from breaking, ensuring smooth, uninterrupted writing. Designed with a sleek black body and a comfortable grip, this pencil offers ultra-fine 0.5mm lines ideal for professionals and students seeking precision and durability in their writing instruments.

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Manufacturer	Uni
Brand	三菱鉛筆
Model Number	M54521P.24
Product Dimensions	19.3 x 1.52 x 5.08 cm; 18.14 g
Colour	Black
Closure	Twist
Grip Type	Sleeve
Pencil Lead Degree (Hardness)	2B
Material Type	graphite
Number of Items	1
Size	1 count (Pack of 1)
Point Type	Ball
Line Size	1_0_1_9mm
Ink Colour	Black
Manufacturer Part Number	M54521P.24
Item Weight	18.1 g

Uni Mechanical Pencil Kurutoga Pipe Slide Model 0.5mm, Black Body (M54521P.24)

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