I am looking for the refillable erasers for the 5639 mechanical pencil

We do not have one specifically for the Rapidomatic but the Koh-I-Noor Mephisto Mechanical Pencil Eraser Refills, White, 10 Per Pack (5035EBC.57) will work but you would need to cut them down. This eraser is 1 5/16" long and the Rapidomatic eraser is 5/16" long. so essentially you get 20 erasers for around $3.00

Are these as good as the old pencils from Japan (30-40 years ago) or more like the cheap ones from China?

These are made in Japan by the same manufacturer that made the original Rapidomatic Pencils.

is there pressure-absorbing spring mechanism in these pencils, aka, cushioned lead?

No, not if you are referring to a self-feed lead system. This design is a throwback to original 5600 series Rapidomatic from the 1990's.

What is the dial for? It came set for HB?

That is so you know what degree lead you are using. It is on HB because it is loaded with HB degree graphite leads. Other degree leads are available. If you use another degree of lead you turn the selector to the appropriate degree.

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Koh-I-Noor RAPIDOMATIC M-PNCL .9MM NVY

Product ID: 422311324

Details

Age range (description)
Adult
Brand
Koh-I-Noor
Colour
Blue
Ink colour
Blue
Writing instrument form
Mechanical

📏lead degree indicator

✏️0.9mm precision lead

🛠️metal knurled grip

$39.10

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Description

✏️ Elevate your ideas with precision and style — don’t let your creativity wait!

INSTANT LEAD ADVANCE - Push-button mechanism ensures smooth, hassle-free lead extension without interrupting your flow.
DURABLE STYLISH BUILD - Robust metal components paired with a sleek navy body and a sturdy pocket clip for on-the-go professionals.
PRECISION IN EVERY STROKE - 0.9mm HB lead for sharp, consistent lines ideal for drafting and sketching.
ERGONOMIC METAL KNURLED GRIP - Comfort meets control with a finely textured grip that reduces hand fatigue during long sessions.
CLASSIC DESIGN MODERN RELIABILITY - A timeless mechanical pencil reissued for today’s discerning creatives and managers who value legacy and performance.

The Koh-I-Noor RAPIDOMATIC M-PNCL .9MM NVY is a premium mechanical pencil featuring a 0.9mm HB lead for precise writing and drawing. It boasts a comfortable metal knurled grip, a push-button lead advance, and a durable metal pocket clip. Pre-loaded with lead and eraser, this classic design combines vintage appeal with modern functionality, perfect for professionals who demand reliability and style in their everyday tools.

Specifications

ASIN	B097CL7SDN
Additional Features	Pocket Clip
Age Range Description	Adult
Best Sellers Rank	#184,440 in Office Products ( See Top 100 in Office Products ) #1,445 in Mechanical Pencils
Body Shape	Round
Brand Name	Koh-I-Noor
Closure Type	Retractable
Color	Blue
Customer Reviews	4.6 4.6 out of 5 stars (347)
Drill Point	Medium
Global Trade Identification Number	00014173427908
Grip Type	Knurled
Hand Orientation	Ambidextrous
Hardness	HB
Included Components	mechanical pencil
Ink Color	Blue
Item Diameter	0.9 Millimeters
Item Dimensions	14 x 0.6 x 0.6 centimeters
Item Weight	14 g
Line Size	0.9mm
Manufacturer	Chartpak, Inc.
Material Type	Metal
Model Name	M PNCL
Model Number	5639
Recommended Uses For Product	Drafting, Drawing, Sketching, Writing
Style	Pencil
UPC	014173427908
Unit Count	1 Count
Writing Instrument Form	Mechanical Graphite Pencil
Writing Technique	pencil lead

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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$39.10

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

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