Best Cobalt Jig Saw Blades of 2026

Harry Stack Avatar
Harry Stack
Last Updated: Jan 24, 2026

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Cobalt jig saw blades are a reliable and durable option for those looking for high-quality cutting tools. Made with a blend of cobalt and steel, these blades are designed to withstand heavy usage and provide precise cuts every time. The unique composition of cobalt in the blades also ensures that they stay sharp longer than traditional steel blades. Whether you are a professional woodworker or a DIY enthusiast, Cobalt jig saw blades are an excellent choice for all your cutting needs.

At a Glance: Our Top Picks

DEWALT Jigsaw Blades Set with Case, T-Shank, 14-Piece (DW3742C) Cover #TOP 1
DEWALT Jigsaw Blades Set with Case, T-Shank, 14-Piece (DW3742C)
ftb score rating icon 9.8
Romeda 10-Piece T-Shank Jigsaw Blades Set Cover #TOP 2
Romeda 10-Piece T-Shank Jigsaw Blades Set
ftb score rating icon 9.7
Diablo DJT20S Jig Saw Blade Set Cover #TOP 3
Diablo DJT20S Jig Saw Blade Set
ftb score rating icon 9.5

Top 10 Cobalt Jig Saw Blades

#TOP 1

DEWALT Jigsaw Blades Set with Case, T-Shank, 14-Piece (DW3742C)

DW3742C
Multi
One Size
DEWALT Jigsaw Blades Set with Case, T-Shank, 14-Piece (DW3742C) Cover
DEWALT Jigsaw Blades Set with Case, T-Shank, 14-Piece (DW3742C)

The DEWALT Jigsaw Blades Set with Case includes 14 T-Shank blades for efficient and precise cuts. The set comes in a durable case for easy storage and organization. With a variety of blade types, you can handle a range of materials such as wood, plastic, and metal with ease.

What We Like
Variety of blade types
Durable and sharp blades
Easy blade installation
Convenient storage case
Accurate and smooth cuts
#TOP 2

Romeda 10-Piece T-Shank Jigsaw Blades Set

14QXJT0001
black
Romeda 10-Piece T-Shank Jigsaw Blades Set Cover
Jigsaw Blades, 10 Piece Jig Saw Blades, Assorted T-Shank jig Saw Blades for Wood, Metal and Plastic Cutting(T111D, T101AO, T101BR, T101D, T101B, T118A, T118B, T144D, T244D,T111C)

The Romeda Jigsaw Blades come in a set of 10 different blades designed for cutting wood, metal, and plastic. Each blade type is suited for a specific task, like clean wood cuts, fast wood cuts, or basic metal work, giving you flexibility for various projects. The T-shank design ensures a secure grip in your jigsaw and makes blade changes quick and tool-free, saving you time and hassle. Made from high-quality SK5 high carbon steel, these blades offer durability and sharpness, allowing you to cut smoothly and efficiently. Plus, they work with most jigsaw models, making them a versatile choice for both home and professional use.

What We Like
Variety of blade types
T-shank easy installation
High carbon steel durability
Compatible with most saws
#TOP 3

Diablo DJT20S Jig Saw Blade Set

DJT20S
Multi
Diablo DJT20S Jig Saw Blade Set Cover
Diablo Jig Saw Blade Set for Wood, Metal and Plastics - DJT20S

This 20-piece T-Shank Jig Saw Blade Set for Wood & Metal offers optimized body designs for fast, clean cuts in wood, and longer cutting life in metals. The T-shank design fits all combo and most U-shank jig saws, providing maximum performance in cordless and corded jig saws. Plus, it provides up to 48% in savings compared to purchasing blades individually.

What We Like
Clean, smooth cuts
Long-lasting durability
Works well on hardwood
Minimal chip-out
Bulk pack savings

WORKPRO 25-Piece Jig Saw Blade Set

W124142A
SILVER
25 PCS
WORKPRO 25-Piece Jig Saw Blade Set Cover
WORKPRO 25-Piece T-Shank Jig Saw Blade Set with Storage Case, Made with HCS/HSS/BIM, Assorted Blades for Wood, Plastic and Metal Cutting

The WORKPRO Jig Saw Blades set is designed for versatility and ease of use. With a T-Shank design, these blades provide a secure grip, ensuring stability during cutting tasks. You can tackle various materials, as this assortment includes blades suitable for wood, plastic, and metal. The set features HCS blades for general wood cutting, HSS blades for harder materials, and BIM blades for heavy-duty projects. Additionally, it comes with a sturdy storage case, helping you keep your blades organized and easily accessible whenever you need them.

What We Like
Good blade quality
Clean, precise cuts
Variety of blade types
Excellent value for price
Responsive customer service
#TOP 5

BOSCH T102BF Jig Saw Blades

T102BF
Black
BOSCH T102BF Jig Saw Blades Cover
Bosch T102BF 3 pc. 3-5/8 in. 13 TPI Clean for Plexiglas T-Shank Jig Saw Blades

The BOSCH Plexiglas Blades are specially designed for cutting Plexiglas ranging from 5/64 In. to 3/4 In. thick, making them ideal for straight and clean cuts. Their ground and taper back tooth design, combined with superior bi-metal longevity, ensures that you can use them for a long time without worrying about dullness or breakage. These blades are perfect for users who need to make precise cuts on Plexiglas without damaging the material. They are also suitable for those who value longevity and durability in their jig saw blades. With the BOSCH Plexiglas Blades, you can expect a smooth cutting experience, excellent results, and long-lasting performance.

What We Like
Clean, smooth cuts
Works on 1/8" and 1/4" plexiglass
Easy jigsaw compatibility
Minimal melting
Good value 3-pack
#TOP 6

Bosch T101AO Wood Jig Saw Blades 5-Pack

T101AO
Black
Bosch T101AO Wood Jig Saw Blades 5-Pack Cover
Bosch T101AO 5 pc. 3-1/4 in. 20 TPI Clean for Wood T-Shank Jig Saw Blades

The Bosch Wood Jig Saw Blades are designed to help you make clean, precise cuts with ease. Their pointed teeth minimize splintering on both sides of your workpiece, so your projects look neat and professional. These blades work well on various materials, including double-sided laminates, MDF, plywood, and both hard and soft woods, giving you versatility for many tasks. With a 20 teeth-per-inch pointed tooth design and a slim blade body, these blades are perfect for making smooth, curved cuts and detailed scrolling work. This 5-piece set ensures you have plenty of blades on hand for your woodworking needs.

What We Like
Clean, fine cuts
Minimal splintering
Ideal for tight turns
Durable blade construction
Works well on plywood
#TOP 7

Craluuur 30PCS Assorted T-Shank Jigsaw Blades Set

Craluuur
Jigsaw Blades
Black
Craluuur 30PCS Assorted T-Shank Jigsaw Blades Set Cover
Craluuur 30PCS Jigsaw Blades Set, Assorted T-Shank Jig Saw Blades for Wood, Metal & Plastic Cutting(T101AO, T101B, T101BR, T118A, T118B, T144D, T244D, T111C, T127D)

The Craluuur T-Shank Jigsaw Blades set offers a versatile collection of 30 blades designed for cutting wood, metal, and plastic. With nine types of blades included, you can easily select the right one for clean, fast, or metal-specific cuts, making your projects smoother and more precise. The standard T-shank design ensures the blades fit securely in most jigsaws, allowing you to change blades quickly and maintain stable cutting. Made from high-quality high-carbon and high-speed steel, these blades are durable and flexible, helping you avoid frequent replacements. Plus, their precision-ground teeth create smooth, splinter-free edges, giving your work a professional finish every time.

What We Like
Wide blade assortment
Fits standard jigsaws
Durable and long-lasting
Great value for price
Clearly labeled blades

BOSCH T118G 5-Piece Metal T-Shank Jig Saw Blades

T118G
Black
5 Count (Pack of 1)
BOSCH T118G 5-Piece Metal T-Shank Jig Saw Blades Cover
Bosch T118G 5 pc. 3-5/8 in. 36 TPI Basic for Metal T-Shank Jig Saw Blades

The BOSCH T118G Jig Saw Blades are designed to cut sheet metal 17-26 gauge and very thin ferrous and non-ferrous metals 1/64 In. - 3/64 In. smoothly with its 36 TPI tooth design. Its high-speed steel construction maximizes the blade's lifespan in straight cuts. The 3-5/8 In. overall length and 2-5/8 In. working length make it compatible with Bosch and other T-shank and combination T-U shank jigsaws. Proper lubricant is recommended when cutting metal. The wavy set and milled teeth are perfect for straight cuts.

What We Like
Long-lasting blade teeth
Clean, precise cuts
Fits Leatherman Surge tools
Excellent durability
Fast delivery
#TOP 9

20PCS Jigsaw Blades Tool for Wood Plastic Metal

GP-20
Black
20PCS Jigsaw Blades Tool for Wood Plastic Metal Cover
20PCS T Shank Jigsaw Blades Tool for Wood Plastic Metal Compatible with 90% Power Jig Saws Such as Bosch DEWALT RYOBI One+ Makita SKIL Black+Decker Includes 4 Each of T101B T101AO T144D T118A & T118B

The 20PCS T Shank Jigsaw Blades Tool for Wood Plastic Metal is a cost-effective way to meet your everyday cutting needs. These high-quality jig saw blades are made of high carbon steel and high-speed steel. Featuring five contact points on the T-Shank for maximum grip and stability, these blades are compatible with over 90% power jig saws such as Bosch, DEWALT, RYOBI One+, Makita, SKIL, and Black+Decker. Get an efficient cutting experience without the need to secure the screws in the mounting holes to reduce damage.

What We Like
High cutting performance
Excellent value
Variety of blade types
Long-lasting sharpness
Easy installation
#TOP 10

CRAFTSMAN Jigsaw Blades, T-Shank Set

CMAJ1SET13
Black
CRAFTSMAN Jigsaw Blades, T-Shank Set Cover
CRAFTSMAN Jigsaw Blades, T-Shank Set, 13-Piece (CMAJ1SET13)

Features
DOWNCUT: Jig Saw Blade Cuts 3/16-Inch To 1-1/4-Inch Material
FAST CUT: Jigsaw Blades Cut 1/4-Inch To 1-7/8-Inch
METAL CUT: Cuts Up To 3/32-Inch
IDEAL USAGE: Ideal For Wood And Metal Cutting Applications
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is the appropriate blade for a jig saw?

Use blades with 21 to 24 teeth per inch to cut metal. With the proper blade, jigsaws can cut through wood with embedded nails, 1/8-in. mild steel, no-iron pipe and sheet metal up to 10 gauge thick (Photo 6). For cutting sheet metal, choose a finer blade with 21 to 24 teeth per inch.

2. Will T shank blades fit all jigsaws?

The T-shape blades can be used on virtually all modern jigsaws and are interchangeable across models. If you have an older jigsaw or a jigsaw that is a cheaper current model, you may need to use U-shaped shank blades, which are still available.

3. What are the different types of jigsaw blades?

There are four materials or material combinations in general use for the manufacture of jigsaw blades: high-carbon steel (HCS), high-speed steel (HSS), bi-metal (BiM), and tungsten carbide (often just called carbide). High-carbon steel is a low-cost material best used for wood-cutting blades.

Editor's Notes

During our cobalt jig saw blade research, we found 24 cobalt jig saw blade products and shortlisted 10 quality products. We collected and analyzed 95,996 customer reviews through our big data system to write the cobalt jig saw blades list. We found that most customers choose cobalt jig saw blades with an average price of $12.52.

The cobalt jig saw blades are available for purchase. We have researched hundreds of brands and picked the top brands of cobalt jig saw blades, including DEWALT, Romeda, Diablo, WORKPRO, Bosch. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Harry Stack Avatar

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.