---
product_id: 730336167
title: "UM Industries INC. Silky 403-50 Katana Boy 500 Folding Saw, World's Largest and Fastest Folding Saw"
brand: "silky"
price: "R$1547"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/730336167-um-industries-inc-silky-403-50-katana-boy-500-folding
store_origin: BR
region: Brazil
---

# foldable & portable design cuts 5-20cm live wood fast 500mm razor-sharp blade UM Industries INC. Silky 403-50 Katana Boy 500 Folding Saw, World's Largest and Fastest Folding Saw

**Brand:** silky
**Price:** R$1547
**Availability:** ✅ In Stock

## Summary

> 🗡️ Cut like a pro, carry like a boss.

## Quick Answers

- **What is this?** UM Industries INC. Silky 403-50 Katana Boy 500 Folding Saw, World's Largest and Fastest Folding Saw by silky
- **How much does it cost?** R$1547 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/730336167-um-industries-inc-silky-403-50-katana-boy-500-folding)

## Best For

- silky enthusiasts

## Why This Product

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

## Key Features

- • **Compact Powerhouse:** Folds down to a sleek 25.8 x 4.1 x 1.2 inches for easy transport and storage in the included shoulder bag.
- • **Refinable & Durable:** Shock-tempering-free blade allows for easy refinishing, ensuring your saw stays sharp and ready for years.
- • **Katana-Sharp Precision:** Experience the unmatched cutting power of a 19.7-inch blade crafted from premium Hyōgo steel, rivaling top chainsaws.
- • **Mirror-Polished Finish:** Not just functional—this saw leaves a beautifully smooth cut surface that stands out in any tool kit.
- • **Effortless Live Wood Logging:** Slice through branches 2 to 7.9 inches thick in seconds—perfect for professional thinning and logging tasks.

## Overview

The Silky Katanaboy 403-50 is a premium 19.7-inch folding saw made in Japan’s renowned Hyōgo region. Designed for professionals who demand precision and portability, it effortlessly cuts live wood between 5 and 20 cm thick with a razor-sharp blade rivaling chainsaws. Its foldable design and included shoulder bag make it ideal for on-the-go logging and thinning, while the mirror-polished finish ensures every cut is clean and visually impressive.

## Description

Silky Katanaboy 403-50 Folding Saw, 19.7 Inches (500 mm)

## Features

- Manufactured in Ono, Hyōgo, famous for producing the finest cutlery steel.
- Recommended Uses: For logging and thinning of branches
- Recommended Users: Those who a value high performance cutting experience.
- Recommended Thickness: Live wood with a diameter of approx. 2.0 - 7.9 inches (5 - 20 cm)
- Product Feature 1: Portable and foldable
- Product Feature 2: Finishes with a beautiful cut surface

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Silky |
| Model Number | 403-50 |
| Product Dimensions | 124.46 x 16.51 x 4.52 cm; 1.38 kg |
| Name List for Name Plates | 500mm |
| Power Source | Hand Powered |
| Laser Class | Collapsible, Foldable, Portable |
| Included Components | No |
| Are Batteries Included | No |
| Model Year | 2013 |
| Item Weight | 1.38 Kilograms |

## Product Details

- **Brand:** Silky
- **Blade Material:** High Speed Steel
- **Surface Recommendation:** Wood
- **Power Source:** Hand Powered
- **Special Feature:** Collapsible, Foldable, Portable
- **Included Components:** No
- **Product Dimensions:** 117.6L x 10.9W x 3.1H cm
- **Item Weight:** 3.04 Pounds
- **Blade Length:** 500 Millimeters
- **Number of Teeth:** 83

## Images

![UM Industries INC. Silky 403-50 Katana Boy 500 Folding Saw, World's Largest and Fastest Folding Saw - Image 1](https://m.media-amazon.com/images/I/51udLUredCL.jpg)

## Questions & Answers

**Q: Are you all sure this is not a knock-off?  $260 saw for $115 makes me wonder.**
A: I see Amazon is claiming it's knocked down from $256.95.
When or if it ever really sold for that much, I don't know.

I suspect that if it did, it was back when the 500mm was the worlds largest folding saw? They could charge a premium for that distinction.
Now that the 650mm is out (for about $300), this one loses that honor and the price drops.

Just my thoughts though.

Oh, here you go:
https://camelcamelcamel.com/Silky-Professional-KatanaBoy-Folding-403-50/product/B002GKB5PQ
Amazon did list it for $256.95 when the listing was new. It looks like the price dropped dramatically after a day or so. Maybe that was the intention? That way they could honestly(?) say it's discounted from that price?

**Q: what is reasonable set???**
A: SET is the distance from each tooth from left to right.  NO SET would give a smooth cut but be very difficult to use.  Some SET makes the strokes easier because you will have a little air space in the cut making the push/pull easier. 
(the previous answer makes no sense)

**Q: Is this the Katanaboy 500??**
A: Yes - the "500" denotes the length of the blade, 500mm.

**Q: Does this come with the carry bag?.**
A: The full katana boy saw came with carry bag.  When I buy a replacement saw blade, it didn't come with a carry bag.

## Frequently Bought Together

- Silky KATANABOY Professional 500mm Folding Saw XL Teeth (403-50)
- Silky Professional BIGBOY Folding Saw 360mm Large Teeth (354-36)
- Silky Professional BIGBOY 2000 Folding Saw 360mm XL Teeth (356-36)

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**Shop now:** [https://www.desertcart.com.br/products/730336167-um-industries-inc-silky-403-50-katana-boy-500-folding](https://www.desertcart.com.br/products/730336167-um-industries-inc-silky-403-50-katana-boy-500-folding)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-27*