---
product_id: 26140372
title: "2 pc Serger Knife Upper and Lower Singer Maintenance Pack"
brand: "gumanyu"
price: "B/.1"
currency: PAB
in_stock: false
reviews_count: 8
url: https://www.desertcart.com.pa/products/26140372-2-pc-serger-knife-upper-and-lower-singer-maintenance-pack
store_origin: PA
region: Panama
---

# 2-piece carbide steel blades includes lint brush & needles precise angle for smooth cuts 2 pc Serger Knife Upper and Lower Singer Maintenance Pack

**Brand:** gumanyu
**Price:** B/.1
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Sharpen your craft with blades that mean business!

## Quick Answers

- **What is this?** 2 pc Serger Knife Upper and Lower Singer Maintenance Pack by gumanyu
- **How much does it cost?** B/.1 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/26140372-2-pc-serger-knife-upper-and-lower-singer-maintenance-pack)

## Best For

- gumanyu enthusiasts

## Why This Product

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

## Key Features

- • **Cut Like Butter:** Premium carbide steel blades engineered for razor-sharp, professional-grade serging every time.
- • **Precision Perfected:** Accurate angle blades ensure flawless fabric trimming, eliminating puckering and uneven seams.
- • **Maintenance Made Easy:** Bonus lint brush and needles included to keep your serger running like new and extend machine life.
- • **Effortless Installation:** Quick, user-friendly blade replacement designed for busy pros who demand efficiency and quality.
- • **Universal Compatibility:** Fits a wide range of top serger brands including Singer, Babylock, Pfaff, and more—upgrade without hassle.

## Overview

This 2-piece serger knife set features durable carbide steel blades with precision angles for smooth, professional cuts. Compatible with major serger brands like Singer, Babylock, and Pfaff, it includes essential maintenance tools such as a lint brush and needles to keep your machine performing at its peak. Ideal for millennial pros seeking reliable, easy-to-install upgrades that elevate sewing quality and efficiency.

## Description

Brand New Upper and Lower Carbide Steel Blade Knifes (2 piece set). Fits BABYLOCK SERGER - BL202, BL302, BL400, BL430, BL432, BL450A, BL4350D, BL5030, BL5040, BL5040L Elna Serger T-3 ,T-33 ,T-34 ,T-34D. HAPPYLOCK SERGER - 1867 OMEGA SERGER - 303SI, 334D, 15J103, 15J134 PFAFF SERGER - 756 RICCAR SERGER - RL564DE, RL613, RL613E, RL624, RL624E, RL634DE, RL634E, RL724E SERGE-MATE SERGER MODELS - 300, 430, SW432, 4350D, 5030 Singer Serger 14U style:, 14u12a, 14u13, 14u32 ,14u34a, 14u34b, 14u44 ,14u46 ,14u52a, 14u53 ,14u64a, 14u65, 14u85 ,14u234 ,14u244 14u285 ,14u28 ,14u344, 14u354, 14u444 ,14u454, 14u544 ,14u554, 14u555, 14u557, PRO4D, Simplicity Serger - SL200, SL350 ,SL370 ,SL390 ,SL803, SL804, SL804D ,SL843 ,SL4300, SL4300ED ,SL4360ED, These are Durable, Accurate Angle Blades Ensure smooth sewing and professional cuts. Perfect for replacing your existing blades. Includes Pro Sew Lint Cleaning Brush

Review: I was pretty skeptical that these were going to fit and work ... - I was skeptical. I have an older machine- much older. It's Simplicity brand and I've had it for about 25 years, and it was my mother-in-laws before I got it. I give it a work out and regular maintenance. It came with replacement blades, 2 sets, and I've used them. I was pretty skeptical that these were going to fit and work as well as the blades the machine came with, but I was wrong. They installed easily, maybe 10 minutes total, most of the time nudging the bottom blade up to it's position (Pro-tip, take a close up pf your bottom blade BEFORE you uninstall it so you know if it was set flush or just above flush. Take a video of your blades running so you know how much they close overr each other. To much and your work will bunch up, to little and it won't cut correctly.) Then I grabbed some scrap denim (the heavy stuff) and gave it a go. Like cutting through butter. I'm so glad I took the chance, I've been doing French seams on everything, which is wonderful, but is also time consuming and often really unnecessary. TL:DR Great blades, installed easily and came with bonus machine needles!
Review: Sew Kitten is Sew Kool! - Very nice serger knife set for Singer machine. I was pleased to find a Sew Kitten trading card enclosed with my order! How cute! This seller caught my attention and I searched for other products they have listed (of course to get more kitty trading cards, lol). I searched online for diy instructions for my particular serger, but couldn't find any. I settled for a few videos that discuss other similar machines on how to install the knife set. I also consulted my machine manual and enlisted my husband to help. It was successful, but then my machine started having other problems, no of which are related to the knife set. Looks like I'm shopping for a new machine, but my old serger has served me well for the past 12 years or so. If your Singer serger has a dulled knife blade, please consider this product offered by Sew Kitten (for the kitty trading cards, of course!!).

## Features

- Brand New Upper and Lower Carbide Steel Blade Knifes (2 piece set)
- SERGER MAINTAINANCE PACK
- Durable, Accurate Angle Blades Ensure smooth sewing and professional cuts
- Singer 14SH644 , 14U part# 412585 and 412749
- Includes lint brush and needles. Keep your serger well maintained.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01CSUL6OS |
| Color | RED-OQ1 |
| Customer Reviews | 4.4 4.4 out of 5 stars (26) |
| Date First Available | March 10, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.352 ounces |
| Manufacturer | Sew Kitten |
| Other display features | Art and Craft Supply |
| Package Dimensions | 4.5 x 2.7 x 0.1 inches |

## Images

![2 pc Serger Knife Upper and Lower Singer Maintenance Pack - Image 1](https://m.media-amazon.com/images/I/71R3wnBsg6L.jpg)
![2 pc Serger Knife Upper and Lower Singer Maintenance Pack - Image 2](https://m.media-amazon.com/images/I/71T2QMLD8-L.jpg)
![2 pc Serger Knife Upper and Lower Singer Maintenance Pack - Image 3](https://m.media-amazon.com/images/I/51BFV+CARoL.jpg)
![2 pc Serger Knife Upper and Lower Singer Maintenance Pack - Image 4](https://m.media-amazon.com/images/I/71Vic7WXa+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ I was pretty skeptical that these were going to fit and work ...
*by I***E on November 22, 2017*

I was skeptical. I have an older machine- much older. It's Simplicity brand and I've had it for about 25 years, and it was my mother-in-laws before I got it. I give it a work out and regular maintenance. It came with replacement blades, 2 sets, and I've used them. I was pretty skeptical that these were going to fit and work as well as the blades the machine came with, but I was wrong. They installed easily, maybe 10 minutes total, most of the time nudging the bottom blade up to it's position (Pro-tip, take a close up pf your bottom blade BEFORE you uninstall it so you know if it was set flush or just above flush. Take a video of your blades running so you know how much they close overr each other. To much and your work will bunch up, to little and it won't cut correctly.) Then I grabbed some scrap denim (the heavy stuff) and gave it a go. Like cutting through butter. I'm so glad I took the chance, I've been doing French seams on everything, which is wonderful, but is also time consuming and often really unnecessary. TL:DR Great blades, installed easily and came with bonus machine needles!

### ⭐⭐⭐⭐⭐ Sew Kitten is Sew Kool!
*by M***G on June 3, 2016*

Very nice serger knife set for Singer machine. I was pleased to find a Sew Kitten trading card enclosed with my order! How cute! This seller caught my attention and I searched for other products they have listed (of course to get more kitty trading cards, lol). I searched online for diy instructions for my particular serger, but couldn't find any. I settled for a few videos that discuss other similar machines on how to install the knife set. I also consulted my machine manual and enlisted my husband to help. It was successful, but then my machine started having other problems, no of which are related to the knife set. Looks like I'm shopping for a new machine, but my old serger has served me well for the past 12 years or so. If your Singer serger has a dulled knife blade, please consider this product offered by Sew Kitten (for the kitty trading cards, of course!!).

### ⭐⭐⭐⭐ Good part. Curious freebie
*by B***S on August 30, 2017*

The part is priced nicely and fit perfectly. It came quickly and everything was dandy. I just don't understand why you would send a "free pack of Serger needles" that don't fit the machine that the knives go to. Curious.....

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.pa/products/26140372-2-pc-serger-knife-upper-and-lower-singer-maintenance-pack](https://www.desertcart.com.pa/products/26140372-2-pc-serger-knife-upper-and-lower-singer-maintenance-pack)

---

*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-02-21*