---
product_id: 367402511
title: "Rapidomatic Mechanical Pencil, .9mm lead, Navy, 1 Each (5639)"
brand: "koh-i-noor"
price: "KSh4306"
currency: KES
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.ke/products/367402511-rapidomatic-mechanical-pencil-9mm-lead-navy-1-each-5639
store_origin: KE
region: Kenya
---

# Retractable design 0.9mm lead size Knurled grip for comfort Rapidomatic Mechanical Pencil, .9mm lead, Navy, 1 Each (5639)

**Brand:** koh-i-noor
**Price:** KSh4306
**Availability:** ✅ In Stock

## Summary

> ✍️ Elevate your writing game with precision and style!

## Quick Answers

- **What is this?** Rapidomatic Mechanical Pencil, .9mm lead, Navy, 1 Each (5639) by koh-i-noor
- **How much does it cost?** KSh4306 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/367402511-rapidomatic-mechanical-pencil-9mm-lead-navy-1-each-5639)

## Best For

- koh-i-noor enthusiasts

## Why This Product

- Trusted koh-i-noor brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ready to Use:** Comes pre-loaded with lead and eraser, so you can start creating immediately.
- • **Durable Design:** Metal construction with a sturdy pocket clip for on-the-go professionals.
- • **Precision Engineering:** Crafted for architects and engineers, ensuring every line is perfect.
- • **Refillable Excellence:** Compatible with Koh-I-Noor #39505908 HB .9mm lead refills for endless creativity.
- • **Comfort Meets Function:** Knurled grip area provides superior comfort during long writing sessions.

## Overview

The Koh-I-Noor Rapidomatic Mechanical Pencil is a premium writing instrument designed for professionals. With a 0.9mm lead size, retractable tip, and a comfortable knurled grip, this navy pencil is perfect for architects, engineers, and draftsmen. It features a durable metal construction, a pocket clip for convenience, and comes pre-loaded with lead and an eraser. For optimal performance, it is compatible with Koh-I-Noor replacement leads and erasers.

## Description

Koh-I-NoorRapidomatic Mechanical Pencil, .9mm lead, Navy, 1 Each (5639)

## Features

- The classic Rapidomatic mechanical pencil is back by popular demand! A longtime favorite of architects, engineers and draftsmen
- Superior quality features comfortable knurled grip area and push-button lead advance
- Sturdy construction includes metal pocket clip and lead degree indicator
- Comes pre-loaded with lead and eraser
- For best performance, use Koh-I-Noor #39505908 HB .9mm replacement lead refills and # replacement eraser

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Chartpak, Inc. |
| Brand | Koh-I-Noor |
| Item Weight | 0.48 ounces |
| Product Dimensions | 5.5 x 0.22 x 0.22 inches |
| Item model number | 5639 |
| Color | Navy |
| Closure | Retractable |
| Grip Type | Knurled |
| Pencil Lead Degree (Hardness) | HB |
| Material Type | Metal |
| Number of Items | 1 |
| Size | 1 Count (Pack of 1) |
| Point Type | Extra Fine |
| Line Size | 0.9 Millimeters |
| Tip Type | metal |
| Manufacturer Part Number | 5639 |

## Product Details

- **Brand:** Koh-I-Noor
- **Writing Instrument Form:** Mechanical Graphite Pencil
- **Color:** Navy
- **Age Range (Description):** Adult
- **Material:** Metal

## Images

![Rapidomatic Mechanical Pencil, .9mm lead, Navy, 1 Each (5639) - Image 1](https://m.media-amazon.com/images/I/61OVAqNNdAL.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Questions & Answers

**Q: I am looking for the refillable erasers for the 5639 mechanical pencil**
A: 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

**Q: Are these as good as the old pencils from Japan (30-40 years ago) or more like the cheap ones from China?**
A: These are made in Japan by the same manufacturer that made the original Rapidomatic Pencils.

**Q: is there pressure-absorbing spring mechanism in these pencils, aka, cushioned lead?**
A: 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.

**Q: What is the dial for? It came set for HB?**
A: 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It’s good
*by R***E on May 15, 2025*

One of the best pencils I’ve ever used not quite the best, but definitely one of the best

### ⭐⭐⭐⭐⭐ An acceptable successor to the original.
*by S***R on May 17, 2024*

I still have and use my original rapidomatic. However, I only use it in one place and it never leaves that place, because I'm afraid of losing it. It is *the* best mechanical pencil I've ever used.So, I've been trying to buy a spare to use for years. The german rotring was all-metal, too heavy, and the grip texture was too fine. The previous Chinese rapidomatic was a pale imitation (too light and the grip texture was low quality). However, they went back to the original Japanese manufacturer and the quality is finally acceptable. It's a little lighter (because the internals are plastic instead of metal), but the outside is the same and it feels great.

### ⭐⭐⭐⭐⭐ Will last years, .9 size is best for general use
*by S***H on March 31, 2023*

An engineer I worked with years ago loaned me a pencil during a meeting, a rapidomatic. I'd always considered mechanical pencils to be cheap and flimsy, even though I liked using pencils for note-taking and sketching, it seemed like I was doomed to pens.I now have at least one rapidomatic that's over 10 years old, and the only reason I ever have to buy new ones is if I lose one (or loan it to some sticky-fingered colleague who immediately falls in love with it).They're available in .3, .5, .7, and .9mm (maybe bigger, haven't seen any). The smaller sizes are definitely at home on a drafting bench where a narrow, fine line can be drawn on a very level surface. I am not a draftsperson, and sometimes I have to jot down notes on a pad that's sitting on whatever's handy - anything thinner than a .9 is going to break frequently in such use.The one plus/minus of this pencil is the rather pointed tip - ideal for its original use against a straightedge or other guide. I've never broken one, but I have scratched some things I've thoughtlessly tossed in a backpack with it. It's solid metal with angular edges, so... But on the plus side, the narrow tip often comes in handy when you need something to hit that tiny reset switch on some device or other, or just need a narrow-but-not-sharp tool to fix/dislodge something.I've tried a couple other similar brands, but the rapidomatic is my favorite for the way I can grip it without excessive effort, it's sturdiness, and the fact that it has a generous sized place to store refills, plus an eraser and a small tool to clear broken leads, under the silver cap.

## Frequently Bought Together

- Koh-I-Noor Rapidomatic Mechanical Pencil, .9mm lead, Navy, 1 Each (5639)
- Koh-I-Noor Rapidomatic Mechanical Pencil, .3mm lead, Red, 1 Each (5633)

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-02*