25 Pack 9 in 6/12 TPI Reciprocating Saw Blades - Fast, Durable Cuts

In this review the 25 pack of 9 in 6/12 TPI reciprocating saw blades is assessed for tradespeople and serious DIYers who need a mix of speed and durability for demolition and metal cutting. The bottom line: these blades deliver solid cutting performance thanks to an M42 cobalt composite construction and a 6/12 TPI design that balances aggressive cutting with a cleaner cross section, making the set a practical bulk purchase for jobs that include nail-embedded wood and occasional steel cutting.

Key Features

• M42 cobalt composite: The blades use high toughness M42 steel with about 8% cobalt for improved abrasion resistance and better thermal rigidity when cutting demanding materials.
• 6/12 TPI composite design: The mixed tooth pitch lets users cut faster through wood while retaining the ability to produce cleaner cross sections where precision matters.
• Half-inch universal shank: The standard shank fits a wide range of reciprocating saws so these blades work with most sawzall-style tools from major brands.
• Quick-release friendly: Blades install and replace easily, which saves time on the jobsite and reduces downtime between cuts.
• Compact carrying case: The transparent plastic case keeps blades organized and portable for transport between projects.

Who It's For

The 25 pack is aimed at contractors, remodelers, and homeowners who do frequent demolition or rough framing and need a reliable supply of blades that can handle nail-embedded wood and occasional metal work. The combination of M42 cobalt and mixed TPI suits jobs where both speed and acceptable finish are required.

Those who primarily cut precision metal parts or require specialized bi-metal blades for continuous heavy steel work should look elsewhere for blades targeted specifically at high-volume metal cutting, but for mixed material demolition and repair this set is a sensible, cost-effective choice.

Pros & Cons

Pros

• Good durability on varied materials thanks to the high-cobalt M42 composite steel.
• Balanced 6/12 TPI gives faster cutting in wood while still handling tougher sections like embedded nails.
• Universal half-inch shank fits most reciprocating saws, making the pack versatile across tools.
• Comes in a clear plastic case for easy storage and transport.

Cons

• Durability reports are mixed: some users found longevity better on steel than others, so lifespan will vary by application and technique.
• Not specialized for continuous heavy steel cutting; performance on thick metal will be more limited than dedicated metal-cutting blades.

Specifications

Blade length	9 in
Tooth pitch	6/12 TPI composite
Material	M42 high toughness steel with ~8% cobalt and D6A mold steel
Shank type	Half-inch universal shank
Pack quantity	25 blades
Storage	Transparent plastic case
Compatibility	Fits most reciprocating saws and sawzall-style tools

Our Verdict

These 9 in 6/12 TPI reciprocating saw blades are a smart buy for anyone who needs a bulk supply of solid all-around blades for demolition, rough framing and occasional metal cutting. The M42 cobalt composite gives a real boost to cutting performance and heat resistance, and the universal shank plus carrying case make them convenient. They represent good value for mixed-material work, though users focused on heavy continuous metal cutting should choose blades designed specifically for that purpose.

Frequently Asked Questions

Will these blades cut through nails and nail-embedded wood?
Yes, the M42 cobalt construction and mixed 6/12 TPI are intended to handle nail-embedded wood and maintain cutting speed and quality.

Do these blades fit my reciprocating saw?
The blades use a half-inch universal shank designed to be compatible with most sawzall-style reciprocating saws from major manufacturers.

Are they good for cutting metal?
They can cut steel and iron in moderation; several users report successful cuts through thin metal, but for sustained heavy metal work a dedicated metal blade is preferable.