12 in 14+18 TPI Reciprocating Saw Blades 25 Pack - Durable Metal

In this review the reviewer finds the EZARC 25 pack of 12 in reciprocating saw blades best suited for DIYers and pros who regularly cut medium-thick metal and need a durable, value-minded blade set. The single biggest reason to buy is the combination of an M42 bi-metal tooth edge with 8% cobalt and a variable 14+18 TPI profile, which together deliver noticeably longer life and consistent cutting through steel compared with basic blades. The set balances cutting speed and tooth durability for frequent metal demolition tasks.

Key Features

• M42 bi-metal teeth: The 8% cobalt alloy teeth hold an edge longer under heavy metal work, extending service life during demolition tasks.
• Variable 14+18 TPI design: The alternating tooth pitch and small gullets optimize cutting speed and control for medium-thick metal sections.
• 12 in length: The 300mm blade length gives reach and leverage for cutting posts, channels, and thicker brackets without frequent repositioning.
• 1/2 in universal shank: Fits all common Sawzall-style tools so the blades work across major recip saw brands on the jobsite.
• 25-piece pack: Provides long-term work support and reduces downtime with a supply of ready replacement blades for multiple projects.

Who It's For

These blades are ideal for contractors, metal fabricators, and homeowners who cut medium-thick steel parts like chain link fence posts, metal studs, and automotive body panels. The bi-metal construction with cobalt and the mixed tooth profile suit frequent cutting and demolition where both life and cut speed matter.

Users who mainly cut wood, very thin sheet metal, or need ultra-fine finish cuts should look elsewhere for blades optimized for those materials; this set is tuned for metal demolition and medium-thick sections rather than fine woodworking or ultra-thin stainless sheetwork.

Pros & Cons

Pros

• Strong cutting ability through steel thanks to M42 bi-metal teeth with 8% cobalt.
• Good value and durability for the quantity provided in a 25-piece pack.
• Universal 1/2 in shank ensures broad compatibility with Sawzall-style tools.

Cons

• Teeth sharpness received mixed feedback from some users, so initial edge consistency can vary blade to blade.

Specifications

Brand	EZARC
Total length	12 in (300mm)
Tooth pitch	Variable 14+18 TPI
Material	M42 Bi-Metal teeth with 8% cobalt
Blade thickness	Approximately 1.1 mm
Cutting capacity	Suitable for 1/16 in - 1/4 in metal thickness
Shank	1/2 in universal shank

Our Verdict

The EZARC 25-pack is a sensible choice for anyone needing a reliable supply of metal demolition blades that balance cutting speed and longevity. For medium-thick steel work the M42 bi-metal teeth with cobalt and the 14+18 TPI profile offer good value and reduced downtime, making this set a practical pick for contractors and dedicated DIYers.

Frequently Asked Questions

Will these fit my reciprocating saw?
Yes, the blades use a 1/2 in universal shank and fit all common Sawzall-style tools from major brands.

What thickness of metal can they cut?
They are intended for medium-thick metal, roughly 1/16 in to 1/4 in thickness for efficient demolition cuts.

Are these good for automotive dismantling?
Yes, the M42 bi-metal edge with 8% cobalt and variable tooth profile make them suitable for many automotive metal-cutting tasks.