Best Flexible Putty Knives of 2025

Howard Chester Avatar
Howard Chester
Last Updated: Jan 3, 2025

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Flexible putty knives are an essential tool for any DIY enthusiast or professional painter. These knives are designed with a flexible blade that can easily bend to match the contours of any surface, making it easy to apply putty or filler to uneven surfaces. The flexibility of the blade also ensures that the putty or filler is spread evenly, without leaving any bumps or ridges. Flexible putty knives are available in a variety of sizes, ranging from small 1-inch blades to large 6-inch blades, making them suitable for any project. With their durable construction and flexible design, these putty knives are a must-have for anyone looking to achieve a smooth and professional finish.

At a Glance: Our Top Picks

Harrier Soft Grip Handle Putty Scraper Knife Cover#TOP 1
Harrier Soft Grip Handle Putty Scraper Knife
ftb score rating icon9.9
Qualihome Putty Knife Set Cover#TOP 2
Qualihome Putty Knife Set
ftb score rating icon9.8
ALLEX Japanese Putty Knife 1" Cover#TOP 3
ALLEX Japanese Putty Knife 1"
ftb score rating icon9.6

Top 10 Flexible Putty Knives

#TOP 1

Harrier Soft Grip Handle Putty Scraper Knife

Harrier Soft Grip Handle Putty Scraper Knife Cover
Harrier Soft Grip Handle Putty Scraper Knife, Flexible Blade, 1.5-inch Wide, 4-Pack
ftb score rating icon9.9
FTB Score

Harrier Hardware's Soft Grip Handle Putty Scraper Knife is a great value for a 4-pack of flexible blades that measure 1.5 inches wide. The molded plastic handles have rubber grip points for comfortable use, and the flexible blades help you apply just the right pressure for a smooth, even, professional look. Customers praise the sturdy construction and flexibility of the blades, as well as the affordable price and durable materials.

What We Like
Sturdy and easy to clean
Comfortable bend in the blade
Versatile for various tasks
Affordable price for a four-pack
Durable materials that prevent rust
#TOP 2

Qualihome Putty Knife Set

QH633
Qualihome Putty Knife Set Cover
Qualihome Putty Knife Set | 6 Flexible Paint Scrapers for Spackling, Patching, and Painting
ftb score rating icon9.8
FTB Score

The Qualihome Putty Knife Set is a versatile and essential tool for any DIY project. This set includes 6 flexible paint scrapers that are perfect for spackling, patching, and painting. The putty knives are made of high-quality sturdy plastic and have comfortable handles, making them easy to use. This set is great for home improvement, artists, and professionals alike.

What We Like
Made from high-quality material
Value kit with several sizes
Great for home improvement, artists, and professionals
#TOP 3

ALLEX Japanese Putty Knife 1"

23310
ALLEX Japanese Putty Knife 1" Cover
ALLEX Japanese Putty Knife 1" for Art and Paint, Flexible Japanese Stainless Steel Blade, Heavy Duty Full Tang Handle, Made in JAPAN
ftb score rating icon9.6
FTB Score

The ALLEX Putty Knife is expertly crafted with a thin, flexible blade made from high-quality Japanese stainless steel. This durable material is perfect for mixing paint over large surfaces and applying putty, ensuring a smooth finish. The heavy-duty, full tang design means the handle and blade are molded together, making it ideal for even professional tasks. You'll appreciate the non-slip, easy-to-grip handle, which provides comfort and control during use, allowing you to work efficiently without worrying about your grip slipping. Each knife is hand-finished in Seki, Japan, ensuring exceptional quality.

What We Like
High-quality Japanese steel
Durable full tang design
Comfortable non-slip handle
Ideal for professional use
#TOP 4

ALLEX 1-1/4" Rounded Putty Knife

23305
ALLEX 1-1/4" Rounded Putty Knife Cover
ALLEX Rounded Putty Knife 1-1/4" for Art and Paint, Flexible Japanese Stainless Steel Blade, Heavy Duty Full Tang Handle, Made in JAPAN
ftb score rating icon9.6
FTB Score

The ALLEX Putty Knife features a blade crafted from high-quality Japanese stainless steel, making it perfect for mixing paint and applying putty. Its flexible design allows you to maneuver easily, ensuring smooth application. The heavy-duty construction, with a full tang design, provides durability for even the toughest tasks, ideal for both DIY enthusiasts and professionals. Additionally, the anti-slip handle ensures a secure grip, giving you the confidence to work efficiently without slipping. With these features, you can achieve professional results with ease and comfort.

What We Like
High-quality Japanese steel
Durable full tang design
Comfortable anti-slip handle
Flexible blade for easy use
#TOP 5

Red Devil 4824 1-1/2" Flex Putty Knife

4824
Black
1.5"
Red Devil 4824 1-1/2" Flex Putty Knife Cover
Red Devil 4824 1-1/2" Flex Putty Knife , Black
ftb score rating icon9.4
FTB Score

The Red Devil 4824 1-1/2" Flex Putty Knife is a great tool for a variety of tasks. It features a high carbon steel blade that is rust-resistant and fully extends through the sturdy solvent-resistant handle. The unique breakaway tab allows for pegboard hanging. Customers love the flexibility of the blade and its ability to get into tight spaces. It is great for applying wood putty, scraping gaskets, and paint. However, some customers have noted that the handle is sharp and cheap.

What We Like
High carbon steel blade is rust resistant
Flexible blade
Unique breakaway tab for pegboard hanging
Great for applying wood putty and scraping gaskets and paint
#TOP 6

Bates 6" Putty Knife

NIF06
Black
6 Inch
Bates 6" Putty Knife Cover
Bates- Putty Knife, 6 Inch, Flexible, Spackle Knife, Scrapper, Metal Scraper, Drywall Spackle, Paint Scraper Tool, Putty Knife Scraper, Metal Paint Scraper, Wall Scraper, Putty Scraper, Spackler
ftb score rating icon9.3
FTB Score

The Bates 6" Putty Knife is a multi-purpose tool made of stainless steel and a metal handle for a secure and comfortable grip. It offers a perfect, precise flex for better finishing and faster application rates, making it ideal for home improvement projects such as applying joint compound, puttying windows, scraping paint, etc. Customers have praised its sturdiness and effectiveness for various tasks.

What We Like
Made of stainless steel and metal handle for a secure and comfortable grip
Perfect, precise flex for better finishing and faster application rates
Ideal for home improvement projects such as applying joint compound, puttying windows, scraping paint, etc.
Sturdy and effective for various tasks

6 Pack Putty Knife Set for Spackling and Painting

Harniruco
Black
6 Pack Putty Knife Set for Spackling and Painting Cover
6 Pack Putty Knife, Flexible Plastic Paint Scraper Tool for Spackling,Plastic Putty Knife, Putty Knife Set, Plastic Spreader, Spackle Tool, Plastic Putty Knife Scraper, Scraper Tool, Putty Scraper
ftb score rating icon9.1
FTB Score

This 6 Pack Putty Knife Set includes six different sizes of flexible plastic paint scraper tools, ranging from 1.5" to 8" inches, making it convenient for both professionals and DIYers. The holes in each handle make for easy storage on any nail or pegboard. Made of 100% polypropylene, the putty knife is solvent-proof and durable. It's perfect for spackling, patching, and painting and is an excellent alternative to metal knife options.

What We Like
Includes six different sizes
Flexible plastic material
Holes in each handle for easy storage
#TOP 8

WORKPRO 4-Piece Putty Knife Set

W004902A
WORKPRO 4-Piece Putty Knife Set Cover
WORKPRO 4-Piece Putty Knife Set, Stainless Steel Made - Perfect for Drywall Spackle, Taping, Scraping Paint, 1.5", 3", 4", 6"
ftb score rating icon9.0
FTB Score

The WORKPRO 4-Piece Putty Knife Set is a great choice for any DIYer or professional. Constructed with stainless steel, these putty knives are highly durable and rust-resistant. The ergonomic handle is made of PP&TPR material for a comfortable and soft grip. This set includes 4 different width sizes, 1.5", 3", 4", and 6", to meet most of your essential needs in working. Customers have praised the quality and durability of these putty knives, making them an excellent choice for any project.

What We Like
Highly durable and rust-resistant
Ergonomic handle for comfortable grip
Includes 4 different width sizes
#TOP 9

HYDE 02250 Flexible Putty Knife

02250
No Color
No Size
HYDE 02250 Flexible Putty Knife Cover
HYDE 02250 2250 Flexible Putty Knife, 1-Pack, No Size, No Color
ftb score rating icon9.0
FTB Score

The HYDE Flexible Putty Knife is designed with high-carbon steel blades, measuring 3-3/4 inches in length, making it ideal for various tasks. The durable nylon handle is resistant to solvents and impacts, ensuring a comfortable grip and longevity. Its double-ground flex blades enhance maneuverability, allowing you to reach tight spots and achieve a smooth finish. Additionally, the die-cast hammer head end is perfect for setting nails and positioning boards, adding versatility to your toolkit. This putty knife combines functionality and durability, making it a reliable choice for both DIY enthusiasts and professionals.

What We Like
Durable carbon steel blades
Comfortable nylon handle
Versatile hammer head end
Flexible double-ground blades
#TOP 10

zYoung 6 Pcs Putty Knife

zYoung 6 Pcs Putty Knife Cover
zYoung 6 Pcs Putty Knife, Plastic Paint Scraper, Plastic Scraper, Plastic Putty Knife, Putty Knife Set, Plastic Spreader, Spackle Tool, Plastic Putty Knife Scraper, Scraper Tool, Putty Scraper
ftb score rating icon8.8
FTB Score

The zYoung Putty Knife Set is a must-have tool for any spackling, patching, and painting project. This set includes 6 flexible and solvent resistant plastic scrapers in two sizes (3pcs 2" and 3pcs 4"). The oblique design of the knives makes wall scraping a breeze, allowing you to easily remove old paint or smooth out uneven surfaces. The plastic material is not only durable but also safe to use on various surfaces without causing any damage. Whether you are a professional painter or a DIY enthusiast, this zYoung Putty Knife Set will provide the convenience and precision you need to achieve a flawless finish.

What We Like
Flexible and solvent resistant
Comes in two sizes
Oblique design for easy wall scraping
Buying Guide Image

The Basics of Choosing the Flexible Putty Knives

Introduction

Putty knives are a type of tool used for scraping, smoothing, and filling surfaces. They are used in many fields, including carpentry, construction, and arts and crafts. A putty knife is a versatile tool, but choosing the right one can be tricky. You'll want to consider the type of job you'll be doing and the handle design of the knife.

Different Types of Putty Knives

Before you choose a putty knife, it's important to consider the type of job you'll be doing. Putty knives come in a variety of shapes and sizes, so it's important to pick the right one for your project.

The most common type of putty knife is the standard putty knife. It has a flat, rectangular blade that is ideal for scraping and filling small areas. This type of knife is typically used for working with wood, plaster, vinyl, and wallpaper.

If you're working with a larger surface area, you'll want to use a flexible putty knife. This type of knife has a curved blade that is designed to fit into corners and tight areas. This style of knife is ideal for working with drywall, ceramic tiles, and other materials.

Handle Design and Material

When selecting a putty knife, it's important to consider the handle design and material. Putty knives come in a variety of handle styles, including plastic, metal, and wood.

Plastic handles are usually the most affordable option and are lightweight and easy to use. However, they are not as durable as metal or wood handles.

Metal handles are more durable and provide better grip when working with wet surfaces. However, they can be more expensive than plastic handles.

Wood handles are the most comfortable to use and provide the best grip when working with wet surfaces. However, they are usually more expensive than metal or plastic handles.

Conclusion

When choosing a putty knife, it's important to consider the type of job you'll be doing and the handle design and material. Standard putty knives are ideal for working with small areas, while flexible putty knives are ideal for working with larger surfaces. Plastic handles are usually the most affordable option, while metal and wood handles provide better grip and durability. With the right putty knife, you'll be able to complete your project with ease.

Frequently Asked Questions (FAQs)

1. What is flexible putty knife used for?

Such flexible blades are also often called “putty knives,” because they're primarily used for filling holes and applying compound smoothly over drywall seams.

2. Are putty knives flexible?

flexible putty knife features a hollow ground carbon steel blade that offers the highest durability and quality finish. The flexible blade easily bends to provide smooth and easy application of filler compound to patch and repair cracks, holes, or scratches prior to painting.

3. Which is the best putty knife?

We found that the best general purpose putty knife is the Craftsman 1½-inch Flex Stainless Putty Knife. It's the best size for filling small holes and cracks, it has an easy-to-clean stainless steel blade, and it has a long, ergonomic handle that makes the tool comfortable to hold and use for extended periods of time.

4. What is stiff putty knife?

stiff professional putty knife is a great tool to tackle your hard working jobs. This tools has a nylon handle which goes in and out of your pocket easily and cleans up quickly. Also the 1.5 in. stiff blade is great for scraping applications that may be hard to get to with a wider blade.

Editor's Notes

During our flexible putty knives research, we found 24 flexible putty knives products and shortlisted 10 quality products. We collected and analyzed 42,955 customer reviews through our big data system to write the flexible putty knives list. We found that most customers choose flexible putty knives with an average price of $6.53.

The flexible putty knives are available for purchase. We have researched hundreds of brands and picked the top brands of flexible putty knives, including Harrier Hardware, Qualihome, ALLEX, Red Devil, Bates Choice. The seller of top 1 product has received honest feedback from 1,538 consumers with an average rating of 4.9.

Written by
Howard Chester Avatar

Howard Chester is an architect from New York who holds a master's degree in architectural design, his passions for interior design and home improvement contribute to his extensive knowledge of all things furniture and home goods. Howard Chester Specializes in various architectural and interior design projects. He often publishes articles related to decoration on key websites and interior design magazines.