25 Pack 9 in 14/18 TPI Reciprocating Saw Blades - M42 Cobalt Bi-Metal

In this review the 25 Pack 9 in 14/18 TPI reciprocating saw blades is evaluated for contractors and DIY mechanics who need reliable metal cutting blades. The bottom line: these M42 cobalt bi-metal blades stand out for durable edge retention and fine, precise cuts thanks to an 8% cobalt alloy and a high 14/18 TPI tooth count. For automotive dismantling, plumbing, or sheet metal work where faster, cleaner cuts and reduced heat buildup matter, these blades offer a good balance of value and performance.

Key Features

• 8% Cobalt Alloy: The cobalt-enriched steel increases hardness and wear resistance so blades stay sharper longer when cutting metal.
• 14/18 TPI Tooth Count: The high tooth density provides smoother, more precise cuts and reduced kickback on thinner metal sheets.
• M42 Bi-Metal Construction: The bi-metal design combines flexibility and toughness to resist breakage during aggressive cutting.
• Wide Compatibility: Fits popular reciprocating saws from major brands so users can swap blades quickly between tools on the jobsite.
• Quick-Release Fitment and Case: The blades come in a transparent plastic case for portable storage and rapid installation or replacement.
• After-Sale Support: Customer service promises responses within 12 hours to resolve any purchase issues for a smoother ownership experience.

Who It's For

These blades are well suited to mechanics, metal fabricators, and homeowners who cut a lot of sheet metal, thin-gauge steel, automotive panels, or plumbing materials and need consistent, fine cuts. The 9 in length and 14/18 TPI are optimized for controlled, accurate work where minimal material burring and heat buildup are priorities.

Those who frequently cut very thick structural steel or demolition work requiring aggressive, fast material removal may prefer coarser, lower TPI blades designed specifically for heavy demolition to avoid slower cutting rates.

Pros & Cons

Pros

• High-cobalt M42 steel delivers improved edge life and corrosion resistance compared with standard high-speed steels.
• The 14/18 TPI gives clean, precise cuts with less kickback and heat than coarse blades.
• Includes a sturdy plastic carrying case and quick-release compatible fit for easy transport and swapouts.
• Good value: the 25-pack provides multiple blades for repeated jobs at a modest cost.

Cons

• Durability received mixed feedback from some users, so performance can vary by cutting technique and material hardness.
• Not optimized for very aggressive, high-volume demolition on thick structural steel where lower TPI blades cut faster.

Specifications

Length	9 in
Tooth Count	14/18 TPI
Material	M42 steel with 8% cobalt
Quantity	25 blades per pack
Compatibility	Fits common reciprocating saws and sawzall-style tools
Storage	Transparent plastic carrying case included

Our Verdict

For anyone needing a versatile pack of metal-cutting reciprocating saw blades, this 25-pack delivers solid value: the M42 cobalt alloy and 14/18 TPI produce clean, controlled cuts and reasonable blade life for typical automotive and sheet metal tasks. Buyers seeking the best combination of precision and cost-efficiency will find these blades a practical choice.

Frequently Asked Questions

Are these blades compatible with Dewalt and Milwaukee saws?
Yes, the blades are designed to replace standard sawzall-style blades and work with most Dewalt, Milwaukee, and similar reciprocating saws that accept universal fit blades.

What materials can these blades cut?
They are intended for metal cutting, including thin-gauge steel, automotive panels, and iron; the 14/18 TPI favors cleaner cuts on thinner metal.

Does the pack include storage?
Yes, the 25 blades come with a transparent plastic case for carrying and organized storage.